Average heart rates vary widely. During stress, the body releases hormones that trigger a “fight or flight” response. A person’s heart rate may increase and exceed 100 beats per minute (bpm).

Understanding the Context

Yahoo: How many times does a heart beat in a day? What about in a lifetime? How many times does a heart beat in a day? What about in a lifetime?

Key Insights

MSN: Why Is My Heart Beating So Fast? 10 Potential Reasons and What to Do - MSN A fast heartbeat can be caused by emotions like stress or anxiety. Dehydration, or drinking caffeine or other stimulants, can make your heart beat fast. More serious conditions like heart arrhythmia ... Why Is My Heart Beating So Fast?

Final Thoughts

10 Potential Reasons and What to Do - MSN Live 5 News: When your heart skips a beat: Signs, treatment of atrial fibrillation CHARLESTON, S.C. (WCSC) — Both doctors and patients say being extra aware of how a heart is beating could save lives. The Medical University of South Carolina’s Chief of Cardiac Electrophysiology and ... News Medical: Fitter hearts beat less: How exercise may add years to life Forget the myth that exercise uses up your heartbeats. New Australian research shows fitter people use far fewer total heartbeats per day - potentially adding years to their lives. Athletes had an ...