Despite everything that we now know about good health, far too many of us smoke, drink too much, sleep too little, overeat or eat badly, avoid exercise, and carry on blithely as if we're destined to live forever. I ask Roizen the first time we talk. But my 'real age' is 39. Roizen has set out to quantify what, until now, have been confusing, contradictory, and anecdotal suggestions from experts about what's healthy and what's not. People who control their blood pressure, for example, not only live longer than those who don't but also have lower rates of disability in the later stages of their lives.
Sex is a good age reducer too, as long as it's practiced safely.
The average sexually active American has sex about once a week. Nutrition also plays a central role in aging. It's no news, of course, that you're far better off eating fruits and vegetables than fats and sugars. Nor is fat all bad. If you undertake only a single new step to regain your youth, build new muscle.