Who wants to live forever? Or at least as long as possible?
Life extension is one of the most popular research topics in the world right now, and researchers at The Institute on Aging, University of Florida, Gainesville, Florida, recently investigated the theory that calorie restriction would help extend the human lifespan.
Rejuvenation Res. 2008 Aug;11(4):793-9.Related Articles, Links Long-term effects of caloric restriction or exercise on DNA and RNA oxidation levels in white blood cells and urine in humans. Hofer T, Fontana L, Anton SD, Weiss EP, Villareal D, Malayappan B, Leeuwenburgh C.
You might have heard about calorie restriction in the news. Many animal research studies have found that if you cut calories from an animal's diet, they can live longer lifespans. This works for mice, monkeys, and even household pets.
But does it work for humans?
In this study, human subjects either decreased their dietary intake by 20% less than needed to maintain weight, or they increased energy expenditure by 20% through exercise. The subjects needed a lot of discipline, because this study went on for over 1 year.
The researchers found that both diet and exercise helped reduce oxidative damage to the subject's DNA. This was expected to have a positive effect on lifespan.
So you might not have to starve yourself to live longer. Both diet and exercise had the same benefiical improvements on the aging process. Of course, the best thing to do for both life extension and weight control is to combine diet and exercise for a double whammy. Not only will you lose 10 pounds, but you could also lose 10 years from your appearance.
Helping you age slower,
Craig Ballantyne, CSCS, MS