I'm very very aware of the dangers of brain damage, and that's why I never wanted to compete despite arguably having good potential. I just wanted to ask something : what would you call a concussion ? For instance, over the years, I know I one time had a concussion (out for 2 minutes, it wasn't even in combat sports). This was a concussion for sure! But many times (I would say about 10 times in 10 years of boxing), I got hit in the head clean, felt it, but was able to continue sparring and didn't feel impaired on the cognitive field at all. I exactly knew where I was, could tell what I did the hours before, everything was fine. I also didn't develop any headaches until going to bed at night. Had mild to moderate headache for anything between 24h and 72 hours. after But again, I didn't feel diminished (maybe a little tired and foggy, but that's it). Did I have a concussion every time? How much does it take for something to be considered a concussion? What is your experience with those things?