Concussions happen. Skiing and snowboarding can lead to a fall and hit to the head. Other sports are culprits too. Even motor vehicle accidents where there has been no hit to the head, but an indirect force as in whiplash, can cause this sort of brain injury. Some of the symptoms of a concussion include new onset headaches, brain fog, dizziness, seeing stars, nausea/vomiting, memory loss. Not all people who have suffered a concussion experience loss of consciousness.
When it comes to healing the brain post concussion, I look to allowing for the brain to rest, to keeping inflammation in check and to ramping up neurological support.