Smoking is a practice in which a substance is combusted and the resulting smoke is typically inhaled to be tasted and absorbed into the bloodstream of a person. Most commonly, the substance used is the dried leaves of the tobacco plant, which have been rolled with a small rectangle of paper into an elongated cylinder called a cigarette.

People most commonly associate smoking with causing lung cancer, but smoking can cause or increase your risk for many health conditions in almost every part of your body. These include: Cancer. See below for a full list of cancers that smoking can cause. Lung disease. This includes COPD, tuberculosis, asthma and pulmonary fibrosis.

Jul 31, 2023 · All forms of tobacco use are harmful, and there is no safe level of exposure to tobacco. Cigarette smoking is the most common form of tobacco use worldwide. Other tobacco products include waterpipe tobacco, cigars, cigarillos, heated tobacco, roll-your-own tobacco, pipe tobacco, bidis and kreteks, and smokeless tobacco products.

Jan 6, 2023 · Smoking can lead to ongoing complications and long-term effects on your body systems. While smoking can increase your risk of certain health conditions over years, like glaucoma, cancer, and ...

Jan 23, 2025 · Smoking, the act of inhaling and exhaling the fumes of burning plant material. A variety of plant materials are smoked, including marijuana and hashish, but the act is most commonly associated with tobacco as smoked in a cigarette, cigar, or pipe. Learn more about the history and effects of smoking in this article.