A Quick 30-Second Test That Might Save Your Life Heart disease can strike silently, but this easy 30-second self-assessment can give you a lifesaving warning. In simple terms, it lets you observe whether your heart rate and recovery look normal after activity. The 30-Second Heart Check isn’t a medical test https://share.evernote.com/note/4768a240-fc70-380c-4d35-0ea36c97e5b0