Tobacco smoking ranks first in the world among preventable causes of death, but about 5 million people die each year as a result of health problems caused by smoking. Smoking leads to marked changes in internal organs; most often affected by the respiratory system, the cardiovascular system, the gastrointestinal tract, as reported by the Internet publication for girls and women from 14 to 35 years Pannochka. net Tobacco smoke contains more than 4000 chemical compounds, more than forty of which, cause cancer, as well as several hundred poisons, including nicotine, cyanide, arsenic, formaldehyde, carbon dioxide, carbon monoxide, hydrocyanic acid and t. In cigarette smoke there are radioactive substances: polonium, lead, bismuth. A pack of cigarettes a day is about 500 x-rays of radiation per year!.

Main risk factors:.

Smokers suffer from lung cancer several times more often than non-smokers.

Smoking increases the likelihood of other types of malignant tumors (tumors of the oral cavity, esophagus, larynx, pancreas, stomach, colon, kidney, bladder, liver, prostate).

Smoking also causes emphysema of the lungs - a chronic disease associated with irreversible degeneration of the lung tissue.

Smoking is a risk factor for cardiovascular diseases, such as atherosclerosis and myocardial infarction.

Smoking is a risk factor for complications in pregnancy.

Smoking adversely affects the sex glands, nicotine promotes development in men of sexual weakness.

Yellow teeth, bad breath, unpleasant odor from hair nmkd. en.