Kerry Breen is a news editor at CBSNews.com. A graduate of New York University's Arthur L. Carter School of Journalism, she previously worked at NBC News' TODAY Digital. She covers current events, ...

You’ve likely felt your heart beating in your chest after strenuous activity — or have taken your pulse by placing your fingers on your wrist or neck. A less common — and sometimes startling — ...

Hearing a rhythmic heartbeat-like sound in your ear, known as pulsatile tinnitus, may be more than just stress or earwax. Though rare, experts warn it can signal serious conditions like aneurysms or ...

Dear Doctor: A few months ago, I started to hear pulsating sounds in my head. I finally came to realize it was my blood pulsing. The sound is always there, but really only noticeable when I'm in bed ...