K&W Healthcare Ltd - Did you know? Your heart is the hardest working muscle in your body! The average heart is the size of an adult fist and is shifted to the
Yashica Heart Care - Did You Know? A human heart is roughly the size of a large fist Your heart beats over 100,000 times per day. Your heart pumps about 1.5 gallons
![OpenStax College Physics Solution, Chapter 1, Problem 15 (Problems & Exercises) | OpenStax College Physics Answers OpenStax College Physics Solution, Chapter 1, Problem 15 (Problems & Exercises) | OpenStax College Physics Answers](https://video-thumbs.collegephysicsanswers.com/ed1/ch01/ed1ch01pe15/thumbs-ed1ch01pe15-00002.png)