A Quick 30-Second Test That Might Save Your Life Cardiac problems sometimes progress quietly, but a short self-check can alert you early. In simple terms, it lets you observe whether your heart rate and recovery look normal after activity. This 30-Second Heart Test isn’t a diagnosis, but it helps you https://www.tumblr.com/dramitpatil/799125220035313664/the-30-second-test-that-could-save-your-heart?source=share