Eat Less, Look Younger?

Eating less may have more advantages than just weight loss. According to a recent research, restricting your calorie intake could lessen the signs of aging, too.

When study volunteers consumed 300 to 500 fewer calories each day for a year, Saint Louis University researchers found that they had decreased T3 production. T3, or triiodothyronine, is a thyroid hormone that, when decreased, slows metabolism and, consequently, tissue aging.

Interestingly, another group of participants who ate the same but burned comparable calories by exercising had no decrease in the T3. Only those who consumed healthier or less food experienced hormonal anti-aging benefits.

That's not to say that exercising doesn't have its age-fighting benefits-it definitely does. But in terms of T3-related aging, a reduced-calorie diet is the way to go.