Effect of exercise on brain?

Question

who can give me a report of

the effect of exercise on brain

Answer 1

basically it causes the production of endorphins which makes you feel happy

Answer 2

please click this link:

http://serendip.brynmawr.edu/bb/neuro/ne...

Answer 3

Exercise also raises blood temperature slightly which the brain detects as it is one of the highly dependent organs on oxygen. The brain then prolongs stage 4 delta wave sleep in the next sleep cycle. This is why exercise helps you have a deep relaxing sleep !