How does heart works?

The heart is one of the most important and hardest-working organs in your body. It's a vital pump that circulates blood, oxygen and nutrients throughout your body, and it's also responsible for removing waste products from your cells.

Here's a simplified explanation of how the heart works:

1. The heart has four chambers: two atria (singular: atrium) and two ventricles. The atria are the upper chambers and the ventricles are the lower chambers.

2. The right atrium receives blood from your body through two large veins called the superior vena cava and the inferior vena cava.

3. The blood then flows from the right atrium to the right ventricle.

4. The right ventricle pumps the blood to your lungs through a large artery called the pulmonary artery.

5. In the lungs, the blood picks up oxygen and releases carbon dioxide.

6. The oxygenated blood then flows back to the heart through four pulmonary veins.

7. The oxygenated blood flows into the left atrium.

8. The blood then flows from the left atrium to the left ventricle.

9. The left ventricle pumps the oxygenated blood out to your body through a large artery called the aorta.

This cycle repeats continuously, ensuring that your body is constantly supplied with the oxygen and nutrients it needs, while also getting rid of the waste products that can harm you.

It's important to take care of your heart health by eating a healthy diet, getting regular exercise, and managing stress. By following these tips, you can help keep your heart healthy and strong for years to come.