will it?because i felt that i am stupider than before after hitting so many soccer balls
haha well i guess thats a first hand experience for you then :) goodluck with hitting those balls dude :)
If someone playing soccer was heading the ball every minute then I could see it causing damage to your brain but since most soccer players head the ball occasionally I do not think it will cause any harm. It would have to be done repeatedly and frequently to do any harm.