Extreme Athletes Have Damaged Brains

The top 1% of athletes in the world with their specific sport spend a lot of time, energy, practice and I guess stress on their body to be in that elite shape. Do they have damaged brains when they're that great at a sport that has a lot of physical exertion or are they okay? Well, I think it depends. Some extreme athletes have Austin brains because they really think about it. They're probably good enough sleep, too.