Smoking Causes Lung and Heart Diseases

Smoking causes 85% of early death from lung cancer and heart disease, even who are inhaling secondhand smoke from other smokers.

In a study is proved that, there are 3000 approx. lung cancer deaths caused by secondhand smoking every year. Our heart performs important function, pumping blood throughout the body. The purpose of the heart is to provide rich oxygenated blood to the tissues and other organs throughout the body. Oxygenation of the blood is the process of mixing oxygen with blood, which is performed by our lungs.

How Does Smoking Cause Lung Cancer?
Smoking is a inhaling of toxic poisons which is come from burning of tobacco. The carcinogen is found in cigarettes, which cause to lung cancer. These include polonium, methoprene, arsenic, cyanide, benzene and carbon monoxide.

Carcinogens contain the unique chemical structure that damages the DNA cells in the body. When smoke is inhaled, the tissue cells of the lungs are exposed. The DNA is responsible for all unique functions like how cells grow and reproduce.

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Once a cell opens to carcinogens for long time, and the DNA affected by this, the cell can become into cancer. A cancer cell can explained by, any cell in the body whose DNA has been reprogrammed to reproduce at very high speed and unstoppable rate. As the affected or cancer cells continue to reproduce, they cause the formation of blood vessels to supply the cells with the needed nutrients to continue growing. This is called tumors because these cells grow into very large quantity.

The large quantity of the tumor makes it difficult to breathe, which decreases oxygen level in the body. The tumor converts into so large that’s why lungs can stop its functions. If a small amount of the tumor enters into blood, it will spread throughout the body parts. Here the process will continue, cells starts growing in the other organs such as the heart, liver or brain. These all causes, these organ stops its functioning.

How Does Smoking Causes Heart Diseases?
Smoking put bad effect to the heart because of two chemicals present in cigarettes: nicotine and carbon monoxide. Carbon monoxide can attaches with the hemoglobin (Hb) of the blood. Hemoglobin is main responsible for the transportation of oxygen throughout the body. Carbon monoxide replaces the oxygen, and reduces the quantity of hemoglobin which transports oxygen to the heart and throughout the body.

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Nicotine provokes the production of adrenaline, which cause the heart to beat faster and it raise the blood pressure. Smoking also produces cholesterol, which also put bad effect on heart. The smoke increases the level of LDL cholesterol (the bad cholesterol) and decrease the level of HDL (the good cholesterol).

Only one cigarette in a day will lead to any heart problem, but you are smoking it from long time it will put bad effect on your heart. It also increase blood pressure, which means your heart work harder on a daily basis, which put load on your heart and it may give birth to serious heart problem, like heart attack.

The smoke of the cigarette affects the production of cholesterol. Cholesterol leads to hardening and narrowing the arteries, which may create problem in proper flowing of oxygen to heart and rest of the body. These all eventually lead to heart attack.