These studies strongly support the need to educate people to make sensible choices when they eat and that they need to exercise and walk more, instead of going by car everywhere.

These people are not genetically lucky.

We know people on calorie restriction will lose weight. But this study isn't a weight-loss study. We're hoping to learn more about whether calorie restriction can alter the aging process.

We know people on calorie restriction will lose weight. But this study isn't a weight-loss study. We're hoping to learn more about whether calorie restriction can alter the aging process.

This paper is important because it is the first study in humans that strongly suggests that calorie restriction may delay primary aging.

If you put animals on a 30- or 40-percent calorie-restricted diet, they live 30 to 40 percent longer, and they have much less chronic disease.