The human heart is an organ that provides a continuous blood circulation through the cardiac cycle and is one of the most vital organs in the human body.
The heart is a muscular organ about the size of a fist, located just behind and slightly left of the breastbone. The heart pumps blood through the network of arteries and veins called the cardiovascular system.
How your heart works?
The heart has four chambers:
- The right atrium receives blood from the veins and pumps it to the right ventricle.
- The right ventricle receives blood from the right atrium and pumps it to the lungs, where it is loaded with oxygen.
- The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle.
- The left ventricle (the strongest chamber) pumps oxygen-rich blood to the rest of the body. The left ventricle’s vigorous contractions create our blood pressure.
The coronary arteries run along the surface of the heart and provide oxygen-rich blood to the heart muscle. A web of nerve tissue also runs through the heart, conducting the complex signals that govern contraction and relaxation. Surrounding the heart is a sac called the pericardium
The heart performs the function of supplying oxygen to all the cells of the body and removing the carbon dioxide from the body.
It also does the function of transporting all the nutrients to each and every cell in the body.
What is important to be healthy?
You need to keep the heart healthy if you want to lead a healthy life.
You should provide sufficient oxygen to the body as we cannot survive without oxygen. Any deficiency in supplying oxygen will definitely affect your health. Therefore regular exercise is very important.
Removal of carbon dioxide is from the body is equally important from health point of view. So the circulatory system and the respiratory system should not be in healthy condition. Anything you do to disturb these two systems will affect your life.
The heart pumps the blood so that each and every cell receives it. Along with blood the essential nutrients are transported from the digestive system to all the parts of the body and the metabolic products formed are returned to liver and kidney from where they are excreted out from the body.
Each cell is like an independent factory. It runs on nutrients for producing energy and other biochemicals, tissues, enzymes and so on. This is a very important point which many of us fail to understand. We get these nutrients from the food we eat. Therefore we are what we eat.
The thumb rule is we should provide all the nutrients that our body requires and in adequate amount. Apart from providing the nutrients we should eat in a way that our blood pH is maintained slightly alkaline (between 7.4 to 7.5). Under these conditions chances of falling sick are rare.
Do not concentrate on cholesterol and fats as it is not the true cause of heart disease.
If you know the real cause of heart disease, preventing and treatment of heart disease and high cholesterol problems is much easier.
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