A lot more attention is being paid to concussions, which is very important. In the past, we used to blow off concussions--“you get your bell rung, go back out there”--but now we realize even “mild” or same type injuries are true concussions. The technical term is mild traumatic brain injury.
The best ways to prevent concussions are helmets, which are getting better for football and other collision sports. We are also making rule changes at all levels to avoid unnecessary hits to the head. Also we are being more protective of our athletes.