The 30-Second Test That Could Save Your Heart Cardiac problems sometimes progress quietly, but a simple test may reveal warning signs before trouble starts. In simple terms, it helps you notice how your pulse changes with light exertion. This 30-Second Heart Test isn’t a diagnosis, yet it gives an early https://www.diigo.com/item/note/b1gr9/gsc9?k=2d36111f46e8e9c6b1de7b312c26c0aa