Infrequent sub-concussive impacts do not cause damage. It is the sub-concussive impacts that happen multiple times in a short period that do.

The average football player who plays in a contact position experienced 800 to 1000 sub-concussive impacts during a 16 week season. That is over 50 a week or 10 a day.

With no time for the brain to recover from these minor hits, the micro stresses become damaging.

Next time a friend slaps you in the head, knee him in the groin as a "welcome."

This is the last time I will address this with you. I will not validate your OCD behaviors. As experience has shown me, you will always have another bump that you think has caused brain damage.


Answer this simple question.

If this slap did cause brain damage, how would it change your life or what would you do differently moving forward?

btw, It did not cause damage.

Stop looking for reasons to think your brain has been damaged.