Quoted By:
My personal experience
>got into exercising in college, read exercise physiology textbooks, went back to school and upgraded from humanities to science, got a Bsc after my BA.
>Roommate twiggy egghead, he gets interested because I'm interested and goes from Bsc to PhD
As far as subjective experience, all I can say is, all my exercising friends are staying sharp and all my non exercising friends are declining (oldfag here now 44)