Explainer: Anatomy of a heartbeat
Your heart beats about 100,000 times per day. That’s around 3 billion times over an average lifetime. Each beat pumps blood to the lungs, where it picks up oxygen. From…
Your heart beats about 100,000 times per day. That’s around 3 billion times over an average lifetime. Each beat pumps blood to the lungs, where it picks up oxygen. From…