I had to give up hockey at a young age because of heart-related health issues. I'd always known there was something wrong with me health-wise, but it wasn't until I'd started really pushing my body to its limits that the true problem reared its very ugly head. Now that I'm older, I appreciate that it was probably a major blessing. By bringing out this issue I didn't even know I had, hockey might have saved my life in the long run. And this was before the Fischer incident and everything that's followed, all of which makes me really worry about high-level athletes. You could be in "top shape" and yet you might also be a ticking time bomb, and without even knowing. It's scary. It puts things in perspective.
Sorry, that all probably seems narcisstic. Just felt like sharing.