What Are the Reasons That Ascertain Smoking Is Injurious to Health?


Quick Answer

Smoking causes lung cancer, heart disease and long-term chronic respiratory diseases, as well as being associated with premature death, according to Medical News Today. Non-smokers live, on average, 10 years longer than smokers. As of 2015, over 480,000 Americans die each year from smoking-related causes.

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Full Answer

The toxins in cigarette smoke, including nicotine and carbon monoxide, damage cells, and carcinogens such as tar are directly responsible for causing cancer, reports Medical News Today. Nicotine is highly addictive and associated with growth retardation, vomiting and seizures when taken in sufficient amounts. Carbon monoxide is a poisonous gas that can cause coma and death when inhaled in large amounts. In less severe cases it causes weakness, dizziness, fatigue, and decreases heart and muscle function.

Ninety percent of male lung cancer patients contract the disease as a result of smoking, states MNT. Tobacco smokers are also at a much higher risk to develop other forms of cancers, including throat or mouth cancer, bladder cancer, leukemia, cancer of the pancreas and stomach cancer.

Smoking is often the cause of atherosclerosis, a buildup of fatty substances in the arteries that leads to coronary heart disease and heart attack, according to MNT. The risk is increased by the combination of tobacco with hypertension, obesity and diabetes. Additionally, smoking lowers HDL cholesterol and creates a higher risk for developing aortic aneurysm, stroke and arterial disease.

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