I'm curious--for someone with your history, did someone like a neurologist ever recommend that you wear a helmet for more than the usual helmet-wearing activities?

Helmet technology is getting better and better all the time. Unfortunately, until we develop a "brain helmet," we all still face the problem of a soft brain slamming into the inside of our hard skulls. Actually, I guess a lot of effort nowadays is also going into developing sensors which help people gauge if they've hit their heads hard enough to be worried and take additional steps, like whether deciding to take a high school player out of a football game, for example, even though they may not show obvious signs of a concussion. The sensor is the easy part. The hard part is correlating that data with what's going on with your brain since we still have a lot to learn about what is happening in there.