Imagine you’re doing a lighting barbell in the gym; you’re 38.39.40! Now you’re so tired that you couldn’t lift that barbell again even if someone pointed a gun on your head. Your arms and chest are so tired. You are feeling fatigued, and as you’re trying to put the bar down, suddenly your arms give up. And then there’s a crash!
Now imagine what if our heart stops working and gives up on beating because it is tired of working. It will be so dangerous, and defibrillator manufacturers will be ruling the world. We, and every other thing related to our heart, will be extinct in some time.
Unlike our other muscles in the body, our heart expands and doesn’t stop all day and night for the entire life without taking any single break. But how can the heart do it?
Our heart is a muscle, but it isn’t like our biceps, pecs, or ab muscles. These are our bodies’ skeletal muscles, which are attached to our bones. And the heart is made up of cardiac muscle.
Both of our cardiac muscle and skeletal muscles need the energy to contract, and they get that energy from mitochondria. Mitochondria are known as cellular power plants. They can develop adenosine triphosphate to transfer chemical energy. Our cardiac muscle can resist being tired because it gets more mitochondria than our skeletal muscle. With our heart taking so many mitochondria (power plant), our heart never needs to stop or take a break.
So, to sum this up, our heart doesn’t get tired because it gets more energy than any other muscle in our body. There is an energy power plant known as Mitochondria, which is the main reason why our heart can work 24×7 for us without being tired or taking any breaks.
We hope this information was useful enough.