Benefits of Leanness

As if there weren't already enough reasons to stay in shape, new research shows the mental benefits of staying trim.  For the first time, research shows a concrete link between being obesity, dementia, and Alzheimer's disease.  What causes the relationship isn't exactly clear yet; the researchers believe that the high cholesterol of the obese may slow brain function.  Whatever the reason, this shows that keeping the body lean has a profound effect on mental ability on later years.