Anyone with a smoking habit has an increased chance of lung, cervical, and other types of cancer; respiratory diseases such as emphysema, asthma, and chronic bronchitis; and cardiovascular disease, such as heart attack, high blood pressure, stroke, and atherosclerosis (narrowing and hardening of the arteries).
The risk of stroke is especially high in women who take birth control pills.
A smoking habit is a physical addiction to tobacco products. Food and Drug Administration has asserted that cigarettes and smokeless tobacco should be considered nicotine delivery devices.
Many health experts now regard habitual smoking as a psychological addiction, too, and one with serious health consequences. Nicotine, the active ingredient in tobacco, is inhaled into the lungs, where most of it stays.
Studies reveal that the more a person smokes, the more likely he is to sustain illnesses such as cancer, chronic bronchitis, and emphysema.
Smoking is the inhalation of the smoke of burning tobacco encased in cigarettes, pipes, and cigars.