The health benefits of an occasional glass of red wine have been pretty well established, and this article indicates that recent studies are identifying the specific compounds in red wine that are responsible for these benefits and linking these compounds to reversal-of-biological-age markers.
Studies with mice have shown that natural compounds such as resveratrol can stimulate the body's survival mechanisms in much the same way as calorie restriction, thus increasing hopes of producing a drug that can rally the human body's resources to tissue maintenance, or longevity.