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  Articles from Energy Times - July/August 2004

Truth in Labeling
By Diane Stanton

Do you or don't you read food labels when you shop? If you don't, you're missing out on a prime source of information about your meals. If you want control of your health, focus on package labels and pick your foods carefully.
The large print on food labels focus on what are called macronutrients: carbohydrates, fat and protein. Some of the smaller categories convey information about vitamins, fiber, and minerals, as well as the totals of fat and saturated fat contained in food. So, you have no excuse for claiming ignorance about your diet: the truth is in the labels.
Food labels can be confusing to the uninitiated.
Go into a big food store and you can be faced with what seems to be a forest of food information: more than 15,000 labels. Add to that fact that every year more than 30,000 new food products can be introduced to the marketplace, and what you're faced with is a jungle of food labels.
That overwhelming wealth of food label information doesn't mean you should throw up your hands in dismay and give up reading and deciphering labels. You should arm yourself against that sea of labels with knowledge and, by understanding them, end your confusion and build your health.

Label History
A hundred years or so ago, food labels were only required to list the name of the food contained inside the package. The contents, quality and processes used to make the food were often a mystery. Little or no disclosure to consumers was made about how their food was created.
By the early 1920s, the federal government, via the Food and Drug Administration (FDA), began requiring food companies to list the net weight of food on labels as well as the names and addresses of food processors and distributors.
Finally, by the 1970s, listing basic nutritional information was mandated in a uniform way so that shoppers could have some basis for comparing foods.
Then, in 1990, the Nutrition Labeling and Education Act made major alterations to the kinds of labels that had to be included on food packages.
The FDA and the US Department of Agriculture (USDA) required significant changes to food labels that were supposed to make it easier for consumers to eat healthier diets.
The labels requirements of 1994 included five major changes:
* The nutrition information on the label had to be printed in larger, more legible type.
* This condensed information had to be on the back or side of food packaging and titled as "Nutrition Facts." This type of information is also shown in grocery stores near the fresh food displays of fish, fruits and vegetables.
* The label had to include a column of information tagged as the "% Daily Value," designed to help consumers understand how the food could fit into a healthy diet.
* Each label had to include information about fat, cholesterol, fiber, sugar, calories from fat, and other information relevant to designing a healthy diet.
* The computed serving sizes were supposed to be more realistic and reflect the amount of food people actually eat at one sitting.

Label Questions
Consumer questions regarding food labels have led researchers to look into ways to help shoppers comprehend what food labels tell them. These studies are designed to help consumers match up their nutrition requirements with the foods they buy.
For instance, at the University of Illinois at Urbana-Champaign, scientists have devised a label tool called See It, Do It, Teach It to help people improve their diets through comprehension of food label information.
"One of the goals of the project was to help…teenaged girls and menopausal women understand how they can get the daily requirement for calcium into their diet in order to help prevent osteoporosis," says Karen Chapman-Novakofski, PhD, associate professor and nutritionist in the school's College of Agricultural, Consumer and Environmental Sciences.
According to the See It, Do It, Teach It program, you should think of food labels as consisting of two sections:
* Food items you should limit: total fat, saturated fat, cholesterol, sodium and, if you're eating a low-carb diet, total carbohydrates
* What you may need to increase: vitamin A, vitamin C, calcium and iron
"Much more attention has been paid to what people should limit rather than the nutrients needed. The average consumer doesn't know, for instance, how much vitamin A 10% of the Daily Value is, or how much calcium 25% of the Daily Value is," Dr. Chapman-Novakofski says.

Upping Calcium Intake
In their eight-week study of people's calcium consumption (Journal of Nutrition Education and Behavior 4/04), the University of Illinois research team found that people didn't know how much calcium was in the food they ate.
After the initial part of the study, in which participants were shown how to look for calcium on labels, "the post-test revealed that the participants significantly increased their calcium intake to 821 mg per day, up from 372 mg per day," notes Dr. Chapman-Novakofski.
"That's a lot closer to the daily requirements of 1,200 mg per day for men and women over 50, 1,000 mg for men and women aged 19 through 50 and 1,300 mg per day for [youths aged] 9 to [18] years," she adds.

Parts of the Label
The first item at the top of a nutrition food label tells you the portion size that the label measures.
An important point to remember: these sizes are determined individually by each manufacturer. Consequently, all of the other values on the label are measured per portion.
So, if you are comparing foods made by two different companies that employ very different portion sizes in their nutritional calculations, your label comparisons may be complicated.
Another fact to be aware of: the listed portion size may be an odd division of the food within the container and not reflect a common-sense division. For instance, some food packages are labeled as containing 2.5 portions.
And, to make things even more interesting, small boxes of candy that you might think contain barely enough for one helping may be labeled by the manufacturer as having two or more portions. As a result, if you eat the whole box, you often have to at least double the number of indicated calories, etc. to figure out the nutrients and calories you are consuming.
The section of the label that notes calories, calories from fat and percent daily values is listed under the portion size. Here you are told how many calories you consume when you devour one portion and how many of those calories are derived from fat.
This label focus on fat originated when consumers and dietitians were very concerned about Americans' fat consumption and hadn't yet switched their focus to carbohydrate consumption as a prevalent dietary health priority.
Also included on the label: the daily value percentages aimed at showing you how much out of a total day's intake of various nutrients a portion bestows upon you.
These percentage numbers are based on a theoretical analysis of a diet that contains 2,000 or 2,500 calories a day. (A notation at the bottom of the label tells you whether the calculation is based on 2,000 or 2,500.)

Carb Facts
If you've been eating a low-carb diet (or are planning this type of diet), the section of the label that lists carbohydrates may be especially useful.
Under this heading, the label lists the totals for fiber and sugar.
No matter what diet you are on, dietary fiber is desirable, since it represents indigestible carbohydrates that both pass through you without conveying any calories and keep beneficial bacteria in your digestive tract healthy.
Most people want to limit their sugar totals, however, since this nutrient may raise your risk of being overweight and, when you eat a lot of it, may contribute to immune problems.
Interestingly enough, when food chemists compute what is in food, they perform lab tests known as assays to distinguish its ingredients. (The manner in which these tests are performed are very strictly regulated by the FDA.)
In fact, just about every nutrient listed on a food label is determined by laboratory test except for the carbohydrate content: the amount of water, fat, crude protein and ash are determined this way.
But the total carbs are computed by simply subtracting the total of the other ingredients from the total amount of food, a kind of process of elimination.
So while fat and protein are measured with precise lab tests, carbohydrate totals are figured by the leftovers. (The water and ash, by the way, are not usually listed on food labels.)
Within the general carbohydrate group, are several categories of carbohydrates that produce very different effects in your body. These categories can be divided into sugar, sugar alcohols, dietary fiber and a collection of various chemicals that include organic acids, flavonoids, gums, lignans and others.
According to the FDA, the food label only has to list the total carbs, sugar and dietary fiber.
But some food companies now list things like sugar alcohols.

Blood Sugar Effects
Not all of these types of carbohydrates behave the same way in your body.
For example, when your body digests table sugar, it turns immediately into blood sugar. So sugar and most other carbohydrate is what we call "digestible carbohydrate." Other carbs, such as sugar alcohol or glycerine, can be digested but do not turn to blood sugar. Still others, such as dietary fiber, are indigestible and pass through your body without impacting your blood sugar level.
To date, the FDA has not focused on these important biochemical differences and treats all carbohydrates alike. This means that when you look at a food label, you do not see a number for the carbs that impact your blood sugar level. To do so, simply subtract the number of grams of fiber from the total number of carbohydrate grams.

Net Carbs
Recently, the phrases "low carb," "net carb" and "impact carbs" have begun to appear on food labels. These are not defined by the FDA; they were put on labels by by companies to help consumers pick out foods that are acceptable on low-carb diets.
To arrive at the total of net carbs, food companies subtract the total amount of fiber and sugar alcohol from the total carbohydrates.

Fiber Calculations
Since the body cannot digest fiber, this nutrient (which is still important for good health) is not calculated into the total amount of carbohydrates.
As for sugar alcohols, while-technically speaking-these are carbs and they do have calories, they have little effect on blood sugar and usually are not counted in total carbohydrates.
According to the American Dietetic Association, people with diabetes who are managing their blood sugars using the carbohydrate counting method should "count half of the grams of sugar alcohol as carbohydrates since half of the sugar alcohol on average is digested.
"Fiber is not digested, however. If the serving of food has more then 5 grams of fiber one should subtract the grams of fiber from the total carbohydrate grams."
As you can see, when it comes to food, as in most things, knowledge is power.
If you want power over your health, you need power over the food you eat. The road to that power is by reading food labels. What's in the food you're eating every day may surprise you.



Nutritional Scorecard
By Sylvia Whitefeather

For over 50 years, the federal government has produced Recommended Daily Allowances (RDAs) as guidelines for vitamin and mineral intake. Then, in 1993, the Reference Daily Intakes (RDIs) superseded the RDAs.
By applying this new designation, the government's guidelines are now supposed to represent the designated amounts that an average person should consume. With this in mind, and the fact that many experts think you should consume more than some of the RDIs, how does your nutritional scorecard add up? Answering a few nutritional questions can point you in the right direction.

Perfect Protein
Are you trying to lose weight?
If you are, the latest thinking on weight loss opines that eating more protein may be the key to keeping your weight down. Two recent studies published in the Annals of Internal Medicine (5/18/04) found that people who ate a low-carbohydrate, high-protein diet lost more weight and had better cholesterol levels than dieters who ate fewer fatty foods. Both studies found that a low-carb diet can improve your triglycerides (blood fats) and boost your HDL, or good, cholesterol.
Eating protein satisfies both tummies and taste buds. Researchers have found that the amount of protein eaten in a meal determines not only how much food you eat but also how satisfied you feel after eating (J Nutr 2004 Apr; 134(4):974S-9S). And when you feel satisfied after eating less food you improve your odds of losing weight.
We need about 50 grams of protein a day to support the body's functions. The best sources of protein are eggs, meat, milk, protein shakes and yogurt.

Classy Carbohydrates
Does your energy level go up and down during the day?
To get off the energy rollercoaster, cut down on carbohydrates, and make sure the carbs you do eat are complex.
Carbohydrates have been getting some unflattering press lately. Yes, if you want to lose weight, you may want to go on a strictly low-carb diet. But for those not concerned with weight, carbohydrates are the principle source of energy for the body.
What's more, even if you do restrict carbohydrates, you should still eat a tiny bit of them. Without some carbs in the diet your body cannot regulate protein or fat metabolism. According to Michael and Mary Eades, MD, authors of The 30-Day Low-Carb Diet Solution (Wiley), "Carbohydrates control insulin and insulin controls your metabolic health."
So, make your carbohydrates count. Indulge in complex carbohydrates: whole grains, fruits and vegetables. In those foods, carbs are accompanied by fiber and larger amounts of vitamins and phytonutrients. Other reliable sources of complex carbohydrates are whole wheat bread, brown rice and oatmeal.

Fabulous Fiber
Are you concerned about your heart health?
Fiber from beans, oats, legumes, nuts, rice bran, fruits and vegetables helps stabilize blood sugar and reduce cholesterol. Pectins, found in apples, pears, prunes and plums, are a particularly useful form of water-soluble fiber.
Insoluble fiber, in cereals, wheat bran and vegetables, reduces the risk of colon-related problems. In addition to adding fiber to the diet, dried beans and soybeans have been shown to lower cholesterol, improve vascular health and kidney functioning, preserve bone mineral density and reduce menopausal discomforts (AJCN 1999 Sept; 70(3 suppl):464S-74S). Fiber also promotes good bowel health and encourages the growth of beneficial intestinal flora.
You need 25 to 40 grams of fiber daily. If you have cut back on your carbohydrates, be sure to take a reliable fiber supplement.

Fantastic Fats
Do you have problems focusing on mentally challenging tasks?
If so, you should eat more fish and get more of the omega-3 fatty acids that fish and flax contain. Higher levels of this type of fat have been linked to better concentration while performing demanding intellectual work (Lipids 2004 Feb; 39(2):117-23).
Fats add flavor to food, making meals taste better. Monounsaturated fats like plain olive oil and canola are liquid at room temperature and are suitable for use in cooking at high temperatures. Researchers have found that a diet high in monounsaturated fat has the ability to decrease LDL (bad) cholesterol (J Nutr 2001; 131:
1758-63). Other fats, such as extra virgin olive oil and flaxseed oil, are best used in dishes that don't need cooking, such as salads.
Although the RDI for fat is less than 30% of the total calorie intake, some researchers believe that if you eat healthy fat, eating too much is not a concern. Omega-3 fats are available in supplement form.

Wonderful Water
Do you suffer from dry skin?
You may not be drinking enough water. This precious liquid is used by every cell of our bodies and makes up 60% to 75% of our body weight.
Water is important for kidney function. Researchers in Italy found that drinking adequate amounts of water can help prevent the formation of kidney stones (Urol Int 2004; 72 Suppl 1:29-33).
Your activity level, environment and diet influence how much water you need daily. Try to drink at least eight cups of fluid a day from noncaffeinated, nonalcoholic sources.

Voluptuous Vitamins
Do you exercise frequently?
If you do, you need more antioxidant vitamins like natural vitamin E and vitamin C as well as a healthy supply of carotenoids. A study at the School of Applied Medical Sciences and Sports Studies, University of Ulster, found that exercisers need more antioxidants. Otherwise, their exertion may release an excess number of free radicals (caustic molecules) in their bodies and do damage to the heart arteries and other internal organs.
Vitamins, in general, are defined as micronutrients that are necessary for life. They are necessary for the production of energy, a healthy immune system and hundreds of other functions in the body.
Vitamins aren't the only substances that produce big benefits in small quantities. Phytonutrients are chemicals in plants that have health-promoting properties. These nutrients are getting more and more attention from researchers who are keeping score on our nutritional requirements.

Mineral Crunch
Do your meals contain plenty of calcium?
If not, you may need supplements to keep your bones strong and help keep your weight down. One study, presented at the Experimental Biology 2003 meeting in San Diego, found that young women who consumed more calcium had better luck controlling their weight. In this research, it didn't take much calcium to make a difference in waistlines. Consuming just one more serving daily (a cup of milk or a thumb-sized piece of cheese, each of which contain about 300 mg of calcium) made, on average, about a two-pound difference.
In addition, many experts recommend multimineral supplements (along with multivitamins) to promote better health. A recent study of people with immune problems, for instance, found that those kinds of supplements seem to help boost the immune system (AT News 2004 Feb 27; 398:4-5).



Herbs in Perspective
By Phyllis D. Light, RH-AHG

"I don't claim a cure...I just try to give people some ease," noted Tommie Bass, a traditional Southern herbalist whose life has been the topic of several books, including Mountain Medicine by Darryl Patton (Natural Reader Press) and Trying to Give Ease by John Crellin and Jane Philpott (Duke University Press). That philosophy reflects the perspective embraced by herbalists for eons.
The traditional use of herbs is incorporated into all cultures. Herbs were the first medicine and the origin of what we now call modern medicine. These plants have not been prescribed to conquer specific illnesses but instead nourish the body and aid in building overall health.

Traditional Knowledge
Observation, psychological need and human instinct form the foundation of traditional herbal knowledge and use. This knowledge has been passed down through generations based on practice and experience. The result: a depth of information about the safe and effective use of herbs that spans thousands of years.
The goal of a traditional herbalist is to bring the body into balance (homeostasis), prevent disease and support immune functioning. Unfortunately, any kind of therapeutic knowledge can be misused, and that has happened with some herbs, causing some people to question herbal medicine's safety.
As more people turn to natural therapies, scientists have begun to perform evidence-based research into their safe and effective use. The good news is that much of this research has validated the effectiveness of herbs and supplements.

Echinacea to the Rescue
Do the sniffling sneezes that herald a cold have you reaching for your bottle of echinacea? If so, you are in good company. Echinacea (Echinacea spp) is one of the top-selling herbs.
The colorful American prairie plant was extremely popular during the early 1900s, until the use of modern antibiotics relegated it to the back shelf. But a resurgence of interest in herbs propelled echinacea back into the mainstream in the second half of the twentieth century. And this herb boasts an impressive body of research and has an excellent record of safety.
For instance, researchers at Virginia Commonwealth University School of Pharmacy have found echinacea to be effective in supporting the body's defenses against upper respiratory tract infections and for reducing the duration of discomforts that accompany the common cold (Pharmacotherapy 2000; 20(6):690-7).
Although studies have not confirmed its ability to prevent colds, echinacea is widely used by many folks for just that purpose. Researchers have found that echinacea's effectiveness may drop if you use it for eight straight weeks (Am J Health-Syst Pharm 1999; 56(2):121-2). So if you take it for a couple of months, take a couple of weeks off before using it again.

Flower Power
St. John's wort is another herb with ancient origins that has experienced a modern resurgence.
Named after St. John the Baptist, St. John's wort (Hypericum perforatum) is generally in bright yellow bloom around St. John's Day (June 26). According to herbalist Michael Tierra, author of The Way of Herbs (Pocket Books), St. John's wort affects the liver and the nervous system. In 1984, the German Commission E, a recognized herbal authority, approved St. John's for depressive disorders, and in topical form for acute injuries and first-degree burns.
Modern research has reaffirmed the use of St. John's wort in the short-term treatment of mild to moderate depression (Cochrane Review Issue 2, 2004). It has also been found to be useful in premenstrual depression (Int J Psy Med 2003; 33(3):295-7). (Researchers have found that the herb may alter how the body processes some prescription medications, so check with your healthcare provider before using such medicines along with St. John's wort.)

King of Herbs
"Ginseng (Panax) received the lofty title, King of Herbs, due to its reputation as a tonic and its ability to stimulate the body into healing," notes herbalism writer Darryl Patton. This plant was once so popular in China that it was worth its weight in gold.
In fact, ginseng is the popular name for two different types of ginseng, American and Korean (Panax quinquefolium and P. ginseng). Both are considered adaptogens, or substances that help the body deal with stress more effectively. And modern research has found that ginseng can be used to improve overall energy and vitality, and to help the body deal more effectively with chronic stress (J Pharm Sci 2003 Dec: 93(4):458-64).
Researchers have found that ginseng helps boost the immune system (J Med Food 2004 Spring; 7(1):1-6). This ancient herb is also a powerful antioxidant that confers protection on the heart (Biochem Biophys Acta 2004 Feb 24; 1670(3):165-71). In other studies, ginseng has been found to reduce symptoms of menopause, improve endurance and lower blood sugar levels.
To avoid overharvesting wild ginseng, most of the herb on the market is now grown on farms.

Ode to Ginkgo
Known as the Living Fossil, ginkgo is the oldest known plant in the world. A native of Asia, ginkgo (Ginkgo biloba) is now found in many US cities, where it has been planted as a quick-growing shade tree. Traditionally, ginkgo was used for disorders and diseases of the lungs and the kidneys, as a remedy for bronchitis and to improve circulation in older people.
Ginkgo contains substances that act as potent antioxidants by scavenging cell-damaging free radicals, and it is thought to help reduce the risk of disease. By opening capillaries, ginkgo increases circulation, and enables nutrients and oxygen to move around the body, especially to the extremities.
Indeed, recent research indicates that ginkgo may ease pain associated with arterial disease in the legs (Am J Med 2000; 108:276-81). Other studies support the use of ginkgo for acute stress (J Pharm Sci 2003 Dec; 93(4):458-64) and some cases of hearing loss (Acta Otolaryngol 2001; 121:579-84).
In a UCLA Neuropsychiatric Institute study on ginkgo, researchers found significant improvement in the verbal recall of people who had age-related memory problems. According to Dr. Linda Ercoli, lead author of the study, "Our findings suggest intriguing avenues for future study…with a larger sample to better measure and understand the impact of ginkgo on brain metabolism."

Tasty Ginger
Traditionally, fiery ginger (Zingiber officinale) has been used to aid digestion, reduce nausea, relieve gas, reduce symptoms of arthritis and strengthen the heart. Modern researchers have started to validate these traditional uses; ginger has reduced the nausea and vomiting of morning sickness in studies (Aust NZJ Obstet Gynaecol 2003 Apr; 4392:139-44).
Meanwhile, researchers at the University of Minnesota have applied for a patent on a substance found in ginger, believing it to have anticancer activity. According to Ann Bode, "Plants of the ginger family have been credited with therapeutic and preventive powers and have been reported to have anticancer activity."
Ginger can be found in natural food stores as fresh or dried root. It often appears in small amounts in herbal formulas as a carrier herb-one that helps move other herbs around the body.
The best medicine combines the health support of herbs with the scientific rigor of conventional medicine. And as scientists continue to search for new medicine from ancient remedies, we can enjoy the best of both perspectives.



Good Hydration
By Lisa James

Ah summertime, and the living is lovely: ocean fragrances wafting on a summer wind, the summer sun warming the body and relaxing the mind. But all that sun and wind can dry your summer skin, making it uncomfortable and parched-looking.
Moisture counteracts the discomforts that summer elements can bring, allowing your fresh, dewy look to shine through. Knowing how to hydrate your skin is the key.

Skin Structure
Skin consists of three layers, each with a different function:
* The deepest layer, the subcutaneous tissue, contains the fat cells that help hold in body heat and protect the vital organs, and that serve as an energy reserve.
* The middle layer, or dermis, is the thickest of the three layers. It is rich in nerve endings, blood vessels, sweat glands and hair follicles. The dermis also holds the oil glands that keep the skin properly lubricated and impervious to water. Two proteins, collagen and elastin, found in the dermis support the skin's top layer and provide shape, tone and flexibility.
* The topmost skin layer, the epidermis, protects the body against the outside world. It contains melanocytes, pigment-bearing cells that determine skin color and help guard against sun damage. The epidermis is also equipped with immune cells that guard the body against foreign substances.
The epidermis is further divided into five separate sublayers. Cells are formed at the basal cell layer on the bottom; they then push their way upward until they reach the surface, called the stratum corneum, in a process that takes roughly 28 days.
As the skin cells mature, they produce a tough protein called keratin, which also forms the structure of hair and nails.

Natural Moisturizers
Do you have dry skin? How well your skin holds moisture depends on the arrangement of cells within the stratum corneum.
Fat contained in this layer, as well as natural moisturizing factor (made by the epidermis), also keeps skin moist. Unfortunately, as you age, the amount of natural moisturizing factor produced by your skin decreases.

Skin Care 101
Obviously, anything that affects the all-important epidermis can dry out your skin-sun and wind both rob skin of moisture.
For starters, just say no to tobacco.
Smoking tightens the skin's abundant blood vessels; this reduces the flow of oxygen and nutrients, creating dryness. Smoking also breaks down elastin, the protein that gives skin its flexibility.
The next step is to add water from within.
"It takes at least six to eight cups of pure water each day to keep the skin and body well hydrated," notes Jeanette Jacknin, MD, board-certified dermatologist and author of Smart Medicine for Your Skin (Avery/Penguin).

Bathtime Tips
At the same time, be careful about how you bathe your skin.
Bathing or showering for too long, or using water that's too hot, can actually cause your skin to lose moisture for two reasons. First, prolonged bathing washes away the oils that help lock moisture in; second, it encourages your skin's own moisture to evaporate after you dry yourself off.
Before you shower or bathe, Dr. Jacknin recommends using a dry, soft-bristled brush to increase skin circulation and gently remove dead cells. Brushing in small circles, gradually move up your legs and arms, always moving towards the heart.
When you do get into the tub or shower, don't scrub your skin and don't use harsh cleaning agents. Instead, go for natural cleansers that feature such skin-friendly ingredients as glycerin.

Feed Your Inner Skin
As your body's largest organ, your skin depends on the nutrients in your diet. You have to feed your skin well if you expect it to stand up to wind and sun.
"Eat fish, rolled oats and ground flaxseeds frequently," recommends Dr. Jacknin. "These foods are high in omega-3 fatty acids, which help the skin retain moisture." Include other healthy oils, such as safflower and olive oil, in your meals. Supplemental omega-3s, in the form of flaxseed or fish oils, can also help.

Supplemental Skin
Various vitamins help make your skin happy and healthy.
Skin growth and repair requires vitamin A, while natural vitamin E provides antioxidant protection and vitamin C promotes creation of collagen, which provides skin with its structure.
The B vitamins are essential to keeping dryness at bay; without them, the skin can crack, peel and redden. Choline, a member of the B family that helps with fat transportation within the body, is available as lecithin.
Methylsulfonylmethane (MSM) is another skin-friendly nutrient. MSM provides sulfur, which the body needs to create healthy skin proteins. It also fights inflammation and encourages better blood flow.

Slake Your Skin's Thirst
A good moisturizer can help arid skin return to soft freshness.
To get the most out of moisturizers, use them consistently, and start at a young age.
"[M]ost people start to benefit from [moisturizers] in their twenties [when] their skin begins to dry with age," state Charles Inlander and Janet Worsley Norwood in Skin: Head-to-Toe Tips for Health and Beauty (Walker and Company). "Moisturizers boost skin health by preventing water loss from the skin."
The same antioxidant nutrients, such as vitamin C and natural vitamin E, you feed your skin from within also abound in natural moisturizers, as do an impressive variety of herbal essences and essential oils.
Aloe vera, used to treat burns for centuries, helps ease inflammation, as does chamomile. Fresh-smelling lavender oil helps soothe insect bites and minor wounds. Jasmine and peppermint offset excessive oil production.

Moisturizers: Timing and Type
The ideal time to moisturize is right after a bath or shower, since that's when evaporation promotes water loss; for best results, apply while your skin is still slightly damp.
But bathtime isn't the only time to consider your skin's moisture needs. Carry some moisturizer with you so you can use it every time you wash your hands, especially if you're prone to cracked cuticles and split fingertips.
Match your moisturizer to your skin type. If your skin tends to oiliness, use a water-based product; otherwise, an oil-based formulation -jojoba oil and shea butter are good choices-is fine. (Oily skin may first need a gentle astringent like lemon peel or cucumber to remove dirt and excess oil.)
Also pay careful attention to the type of moisturizer you use. Lotions are easy to apply, but may not stay on your skin as readily as creams, which may be a better choice for your face, feet and hands.
By all means, enjoy the summer sun. Just make sure your skin enjoys the summer, too, by staying hydrated and happy.



Summer Sports Nutrition Guide
By Joyce Dewon

If you're hooked on exercise you're probably just as hooked on using top-notch equipment when you work out. Those who are serious about staying in shape buy the best running shoes, carefully pick out the best bikes and tread on durable treadmills.
But do you pay just as much attention to your nutrition? Scientists who have studied exercise have found that what you eat before, during and after workouts is crucial to maintaining your health, getting into shape and staying fit. To achieve your best athletic performance without getting injured or sick depends on optimum nutrition. When you carefully plan what to feed your exercised body, it rewards you by feeling and looking better.

Short 'n Sweet
If you thought long exercise sessions were the only ways to get decent exercise benefits, take notice: small doses of exercise during the week can go a long way.
"The important thing, apparently, is just do it," says Howard D. Sesso, ScD, author of an American Heart Association study on exercise and heart disease. In his study, exercisers demonstrated that several short sessions of exercise were as good for the body as a single long session (Circ 8/00; 102:975-80).
"Short sessions lasting 15 minutes long appear to be helpful,"Dr. Sesso explains. Even walking about three miles per week, which is a moderate level of exercise, lowers your risk of heart disease by 10%.

No Sweat?
Some people glorify in working up a sweat; others curse the dampness. But putting in extra effort in even short bursts of activity pays off: experts have found that intense exercise burns more calories than more relaxed sessions, more effectively reduces your risk of cardiovascular disease and helps stabilize blood sugar levels. In addition, it stimulates production of human growth hormone, which offsets some of the effects of aging (Exp Biol Med 2004 Mar; 229(3):240-6).
But don't go crazy if you haven't worked out in a long time. The intensity of the workout should match your physical fitness.
According to the American Heart Association, when people exercise at a comfortable pace, their heart rate and level of exertion stay within a safe range, but still high enough to benefit their health. Strenuous activities, for those who can handle them, produce the most physiological bang for the jog. But brisk walking within your own level of fitness still offers significant benefits.

Feeding Your Muscles
When you exercise, you work and develop your muscles, which are made primarily out of protein.
Despite this fact, many exercise experts have advocated high-carb diets for athletes. But, as John Ivy, PhD, and Robert Portman, PhD, point out in their book The Performance Zone (Basic Health), "[While] there is no doubt that aerobic athletes require more carbohydrate than strength athletes…we are now discovering that the addition of protein to a carbohydrate supplement offers significant benefits to aerobic athletes."
That is why researchers believe that consuming plenty of protein along with carbohydrates offers the best fitness benefits. Protein helps fuel activity more efficiently and aids in recovery after a session at the gym, allowing your body to repair muscle damage and build up muscle fibers.
During exercise, you break down muscle tissue. It is during recovery, after your exercise session ends, that muscles are rebuilt. At the same time, other cellular processes take place that adapt the body to working out.
According to Ivy and Portman, timing your intake of nutrients after exercise is crucial: "The ability of the muscle machinery to regenerate itself decreases very rapidly after a workout, so that the nutrients consumed more than 45 minutes after exercise will have far less impact in helping the muscles regenerate than nutrients consumed earlier."

Stresses and Tears
Engaging in athletics can cause microscopic muscle tears. These tears can cause a range of problems that, when you exercise excessively, can cause pain and injury.
Inflammation is the body's response to cellular damage. The damaged area can swell as the body sends white blood cells and other cells to repair the injured area. Unfortunately, the swelling can further damage the muscle cells.
Since inflammation can take 24 hours or more to cause the collection of cells in the injured area, it can be a day or two before the resulting muscle soreness reaches its peak painfulness and then starts to subside.
Cortisol, a hormone produced when you exercise strenuously, which can result in muscle fiber damage. Cortisol boosts protein breakdown, so it can be used to fuel muscle movement. But the more protein breaks down, the more potential exists for muscle fiber injury.
Free radicals are caustic molecules that are created when the mitochondria (small structures in cells) create energy; these marauders can also cause microscopic shredding of muscle strands. As you increase your use of energy during exercise, you simultaneously increase the production of free radicals. This collection of free radicals can outstrip the body's antioxidant defenses, leading to extensive muscle damage and dampening of the immune system.
All of these cellular events can make you sore. They are also the reasons that athletes who overdo it day after day are liable to come down with nagging colds and a variety of infections.

Muscle Fuel
Your muscles use different substances for fuel depending on what you ask them to do. Lift a heavy weight and muscles recruit two processes called the creatine phosphate system and glycolysis to generate a large amount of quick energy. These are known as anaerobic types of energy production.
But if you jog, swim, bike or perform any other aerobic activity, the cells use oxygen in what is called cellular respiration to supply energy to working muscles.
When you exercise aerobically for extended periods of time, the energy available is generally limited by how much oxygen your body is capable of taking in and supplying to the muscles, where it takes part in energy production. In athletic circles, this upper limit is known as your VO2max.
The carbohydrates your body burns for energy during aerobic activity are taken from blood sugar and carbohydrate reserves called glycogen. (The muscles store glycogen, as does the liver.) During a workout session, your glycogen supply is limited to what is stored with your muscles. But blood glucose can be boosted by carbohydrate drinks, energy gels or bars.
Most people who work out have enough glycogen and blood sugar to fuel moderate aerobic activity for about two hours. After that, the body turns mostly to fat and protein stores to fuel exercise.

Fat Into the Fire
In contrast to the body's quickly diminishing supply of glycogen and blood sugar, fat can last for hours and hours of exercise. According to Portman and Ivy, a 200-pound man with 15% body fat has, theoretically, enough fat energy to run from Washington DC down to Miami Beach-and still has enough energy left over to jump into the ocean.
But using fat for energy is complicated; fat is stored in fat tissue and not readily available to working muscles. Plus, to burn fat for energy, the body needs carbohydrate-it cannot burn fat all by itself. What's more, the conversion of fat into energy doesn't go as quickly as carb conversion.
Protein is also used for energy when carbs run low. But the more you use protein for energy, the more you risk soreness as muscle fibers break down.

Prepare to Energize
To maximize your energy during exercise and minimize soreness, Portman and Ivy recommend some simple nutritional steps:
* Drink 14 to 20 ounces of water or a sports drink with electrolytes about a half hour before you work out. Consuming fluid helps stave off dehydration longer, helps you sweat more (which cools your body) and moderates the rise in body temperature that takes place during exercise. Portman and Ivy favor sports drinks to help you retain fluid and maintain your mineral balance.
* Eat carbohydrates an hour before exercising, which boosts glycogen and increases blood sugar and insulin. Portman and Ivy add that, alternatively, you can also consume a protein/carbohydrate sports drink about half an hour before working out. The protein helps protect muscle protein from being broken down.
* Drink small amounts of fluid frequently as you exercise to replace water lost through sweating. While some experts recommend only drinking enough to quench your thirst, most researchers agree that a sports drink with electrolytes is best to ensure proper mineral balance in your body.
* Consume carbs and protein during exercise. Portman and Ivy note that soccer players who consume sports drinks that contain electrolytes, carbohydrates and a bit of protein can perform more effectively. Cyclists who go on bike rides of three hours or more enjoy more endurance when they eat energy bars or consume other sources of carb and protein. Portman and Ivy advocate drinks that contain carbs and protein in a 4:1 ratio.

Limit Soreness
Taking protein and carbs while working out can limit muscle damage and curtail soreness. Carbs apparently drop your cortisol levels, and thereby limit muscle injuries linked to this hormone.
While the mechanism that helps protein limit muscle soreness is not completely understood, it is possible that taking in protein while working out keeps the body from shredding muscle tissue in search of fuel.
Supplements that contain antioxidants such as natural vitamin E and vitamin C (Portman and Ivy think you should take these during exercise) may limit free radical damage to muscle fibers.

Muscle Reconstruction Plan
If you want to help your exercise plan make you stronger, you should focus your after-exercise sports nutrition plan on these steps:
* Help your muscles recover from damage during activity and stimulate the rebuilding process
* Replace glycogen (carbohydrates) the muscles have used up during your workout
* Reinforce your immune system
* Replace water and minerals lost in sweat
Even after you stop exercising, your muscles are still breaking down, according to Ivy and Portman. The key to putting the brakes on this breakdown and initiating the rebuilding process is by consuming a combination of protein and carbohydrate within 45 minutes after your workout is completed.
The protein part of the equation is vital: don't merely indulge in only carbs after exercising. A recent study found that while carbs could help muscles rebuild, adding protein can make a big difference in improving your fitness (J App Phys 2/04).
This combination of nutrients stimulates the pancreas so that it releases insulin. The release of insulin is the key, initial step that sets off a cascade of physiological events that speeds muscle recovery. Although many people think of insulin as an undesirable hormone-if you never exercise, too much insulin may help drive your blood sugar down and cause other problems-for exercisers, this hormone plays a crucial function in benefiting from exercise.
By eating carbohydrate and protein soon after working out and stimulating insulin, according to Ivy and Portman, you help your body boost its synthesis of protein by:
* Increasing the amount of amino acids (protein building blocks) that get into the muscles-this can increase by up to 50%
* Increasing the production of protein synthesizing enzymes by up to two-thirds
* Slowing the breakdown of muscle proteins

Drinking for Exercise
The most obvious nutrient you lose during intensive exercise is water in your perspiration. However, that perspiration also contains an array of minerals known as electrolytes. So, for optimal performance and health, experts recommend you replace both the water and its minerals.
Merely drinking water-instead of electrolyte-filled sports drinks-during prolonged aerobic activity can be dangerous. It leaves you vulnerable to a condition called hyponatremia, which can occur when your blood levels of sodium and other electrolytes drop, but your blood volume stays steady or increases because you drink lots of water.
According to Edmund Burke, PhD, in his book Optimal Muscle Performance and Recovery (Avery), one out of four athletes who seek medical attention after a long race are suffering hyponatremia.
"Typically," he says, "conscientious athletes get in trouble because they adhere too diligently to one recommendation: the need to drink lots of fluids. They tend to ignore another recommendation: The need to keep electrolytes up…for most endurance athletes the real problem is drinking too much water." Dr. Burke warns that you can possibly suffer hyponatremia even if you don't drink a lot of water.
Signs of hyponatremia can be similar to those of heat exhaustion. But, while resting and cooling down can help alleviate heat exhaustion, that doesn't help hyponatremia.
"To protect yourself against hyponatremia, start by paying attention to how much you sweat," Dr. Burke says. If your sweat seems very salty, burns your eyes or leaves an evident, white residue on your skin, you may be losing a great deal of sodium and should be diligent about eating salty foods.
"You can also make sure you're getting enough sodium by drinking sports drinks instead of plain water during long (exercise) events," Dr. Burke notes.

Exercise Matters
Of course, no matter what you decide to eat or drink while exercising, the most important factor for your well-being is to get out to the gym, onto the track, or just on to the sidewalk, and do something, even if you only want to go out for a walk. No matter how old you are or what kind of shape you're in, you'll benefit from exercise.
"It's solid evidence that across-the-board declines occur when people stop exercising," says Charles Emery, PhD, professor of psychology at Ohio State University (Health Psychology 3/04).
Don't decline or remain supine. Let your fitness climb.

 

 

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