She'd lost count the number of concussions she'd had in her life. Too many. Way too many. It was no wonder that she was half-cracked. Just like one of those American football brutes who couldn't even remember their own name or the scores of former professional boxers who'd taken too many blows to the head, she knew that the lasting impact of her injuries wasn't good. Magic could do a lot of good in healthcare, but nothing was fool-proof. There was still a lot that was still being learned and researched in both the Muggle and magical worlds. Maybe one day there would be a cure for the traumatic brain injuries and the less-traumatic though more frequent repeated injuries. She didn't hold out much hope for herself though. The damage had already been done.