What is a normal heart rate?

By Bahar Gholipour , Nicoletta Lanese  - Live Science

Human heart: Anatomy, function & facts

By Tanya Lewis  - Live Science

Read an excerpt from 'Pump: A Natural History of the Heart'

By Mindy Weisberger - Live Science

Tiny 'hearts' self-assemble in lab dishes and even beat like the real thing

By Nicoletta Lanese - Staff Writer Live Science

Spaceflight and long-distance swimming shrink the heart

Doctors heard music when checking a man's pulse. Here's why.

By Rachael Rettner - Senior Writer  Live Science

Man's 'heart attack' was really side effect from swallowed battery

By Ashley P. Taylor - Live Science Contributor 

Possible cause of COVID-19 blood clots found

By Rachael Rettner - Senior Writer  Live Science

Cases of broken heart syndrome increase amid pandemic stress

By Yasemin Saplakoglu - Staff Writer  Live Science

A 'normal' resting heart rate may not be so normal after all

By Joshua A. Krisch - Live Science Contributor