In the eyes of most faiths, they expect you to die for your faith or belief, because if you denounce your faith or belief you are not loyal to your God(s) and disloyalty to faith is looked down upon. By denouncing your faith and beliefs to save your life, you are being selfish, and in some faiths, you are taught to be selfless.
Yes its a part of your personal health
Well because this is health I am assuming they are referring to the health side of the sport. The concussion rate in the sport is super high, higher than most sports even with the padding and helmet protection. It is also a high contact sport so injuries are bound to happen.
