35-year-old hockey player shares ignored warning signs before cardiac arrest.

Brandon Miller, a 35-year-old hockey player, collapsed during a game due to cardiac arrest. Luckily, three of the other players were medical professionals, who immediately began performing CPR and using an automated external defibrillator (AED) to shock his heart back into rhythm, which saved his life. Miller had ignored subtle warning signs such as occasional pain in his left shoulder and intense chest pain. After undergoing open heart surgery, he hopes to play in a charity hockey game in April and encourages young people to be more proactive with their health.