A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can ...

We may soon be able to diagnose cardiac problems at home using ordinary smartphones to record the sounds of our heart beating. An app that lets people record their heart sounds has been found to make ...

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed ...

Researchers show that regular earbuds can be turned into heart-vibration sensors that measure detailed heart valve activity almost as accurately as chest-mounted medical devices.