Presidents age twice as fast , says a theory by expert on aging at Cleveland Clinic . Analysis determined by looking at medical records of previous presidents . Comment: Roizen : Obama has good fitness habits of exercising , but smoking does n't help .
Presidents age twice as fast , says a theory by expert on aging at Cleveland Clinic . Analysis determined by looking at medical records of previous presidents . Tolls of stress can be reversed with healthy habits , says Dr. Michael Roizen . Roizen : Obama has good fitness habits of exercising , but smoking does n't help .