Cutting calories smart way to slow aging.

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Cutting Calories Better than Exercise at Slowing Aging?

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Medically Reviewed On: Friday, March 31, 2006 Consuming fewer calories may

slow down the effects of aging in both the heart and body.

http://sciencedaily.healthology.com/main/article.aspx?content_id=3504 & focus_hand\

le=diet & sky=hty|newsletter|nutrition-11-01-06|link2 Primary aging refers to

the maximal length of a person's life. Secondary aging refers to any disease,

such as heart disease or cancer that can prevent a person from reaching their

maximum life span. By reducing or eliminating factors that interfere with

secondary aging, a person should be able to better reach their projected

lifespan. By slowing primary aging, a person can effectively increase the length

of their projected lifespan. Previous research has suggested that calorie

restriction helps make the heart more elastic, allowing it to relax more between

beats. This effect appears to allow older hearts to beat more like young hearts.

The researchers found that only those participants who practiced calorie

restriction experienced a reduction in concentrations of a thyroid hormone

called triiodothyronine (T3). T3 has previously been shown to help control the

energy balance and cellular metabolism in the body. Individuals who

practiced calorie restriction also experienced a reduction in an inflammatory

molecule called tumor necrosis factor alpha (TNF). The researchers believe,

based on earlier animal studies, that this combination of lowered T3 levels and

reduced inflammation may slow down the aging process by reducing the body's

metabolic rate. It may also help reduce any oxidative damage being done to cells

and tissues. The effects of calorie restriction on primary aging had

previously been hinted at in animal studies, which showed that calorie

restriction can extend the life of rats more than exercise. " Sedentary rats

who ate a standard diet had the shortest average life-spans. Those

who exercised by running on a wheel lived longer, but animals on calorie

restriction lived even longer, " explained O. Holloszy, M.D., professor of

medicine at Washington University School of Medicine, in a 1997 report that

appeared in the Journal of Applied Physiology. The results of this latest

study appear in the May 23 issue of the Journal of Clinical Endocrinology and

Metabolism. Copyright 2000-2006 HealthCentersOnline, Inc.

After all, they (the pro-vaccine lobbyists) say to themselves, you can't make

an omelette without

breaking eggs. But the eggs being broken are small, helpless, and innocent

babies, while the omelette is being enjoyed by the pediatricians and vaccine

manufacturers. - L. Coulter, PhD

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