"Causes of smoking on humen body"death ratio increasing rapidly.

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Smoking is a harmful habit that affects the human body in various ways. The primary cause of smoking on the human body is the presence of nicotine, a highly addictive substance found in cigarettes. Nicotine increases the level of dopamine in the brain, leading to a temporary feeling of pleasure and relaxation. However, the long-term effects of smoking are detrimental to health.

Smoking causes damage to the respiratory system, leading to chronic bronchitis, emphysema, and lung cancer. It also affects the cardiovascular system, increasing the risk of heart disease, stroke, and peripheral vascular disease. Other effects of smoking include decreased fertility, premature aging, and damage to the teeth and gums.

Secondhand smoke, which is the smoke inhaled by non-smokers, can also cause similar health effects. Quitting smoking is the best way to reduce the harm caused by smoking and improve overall health.



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