Sign in
Download Opera News App



Health Living


Physical Exercise and Bodybuilding

The only Human Muscle That Never Gets Tired In The Entire Life

Muscles are an amazing part of the body. Without them, you wouldn’t be able to walk, eat or pick your nose. When people think about muscles, it’s usually about the big ones in their arms and legs. But you couldn’t blink if you didn’t have muscles in your eyelids. You also couldn’t roll your eyes at your parents if it weren’t for the six muscles that control each of your eyeballs.Muscles act by contracting (getting smaller) and relaxing.

Note better, Photo used for illustration purposes only

Which muscle never gets tired in the human body? 

This type of muscle only exists in your heart.Your heart is an incredibly powerful organ. Every day it beats about 100,000 times. Imagine the energy takes it to squeeze a tennis ball – that’s not far off the force your heart is using each time it beats to pump blood around your body. Unlike other types of muscle, cardiac muscle never gets tired. It works automatically and constantly without ever pausing to rest. Cardiac muscle contracts to squeeze blood out of your heart, and relaxes to fill your heart with blood.

Content created and supplied by: KokiNews (via Opera News )


Load app to read more comments