Question

Why do you think it is important to study a person traits and the change of it as they grow older?

Answer 1

http://www.google.com/search?q=why+study+aging&ie=utf-8&oe=utf-8&aq=t&client=firefox-a&rlz=1R1GGGL_en___US357

Lots of information and opinion in these websites and scholarly articles.