It may promote brain plasticity by a direct effect on the brain.

It seems that physical activity had an even more pronounced effect among those with the susceptibility gene apoe4, the most important risk factor for Alzheimer's disease and dementia.

This is the first study to show this long-term relation between physical activity and dementia later in life.

These findings may have wide implications for preventive healthcare. If an individual adopts an active lifestyle in youth, at midlife, this may increase their probability of enjoying both physically and cognitively vital years later in life.

The main problem with writing in verse is, if your fourth line doesn't come out right, you've got to throw four lines away and figure out a whole new way to attack the problem. So the mortality rate is terrific.

I always loved the way music made me feel. I did sports at school and all, but when I got home, it was just music. Everybody in my neighborhood loved music. I could jump the back fence and be in the park where there were ghetto blasters everywhere.