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The World Health Organization estimates that, in total, about 8 million people die from tobacco-related causes, including 1.3 million non-smokers due to secondhand smoke. [7] It is further estimated to have caused 100 million deaths in the 20th century. [4] Tobacco smoke contains over 70 chemicals, known as carcinogens, that cause cancer.
Typical tobacco packaging warning message about the health effect of smoking tobacco The front of a 20 pack of Marlboro Red cigarettes sold in New Zealand. Brazil's third batch of graphic images (since replaced), mandatory on all cigarette packs. Philippines. Graphic tobacco packaging warning messages from 2016 to 2018.
DANGER: SMOKING CAUSES CANCER Nine out of ten patients with lung cancer are smokers. Smoking also causes cancer of the lips, mouth, voicebox, food pipe and bladder. Quitting smoking reduces your risk of cancer. DANGER: SMOKING CAUSES HEART DISEASE Smoking is a major cause of heart attacks, strokes and blood vessel diseases.
The smoking of non-tobacco products is not known to be associated with lung cancer development. Marijuana smoking does not seem to independently cause lung cancer – despite the relatively high levels of tar and known carcinogens in marijuana smoke. The relationship between smoking cocaine and developing lung cancer has not been studied as of ...
Another shows a man's chest with a long scar from surgery and a different warning: “Smoking can cause heart disease and strokes by clogging arteries.” Nearly 120 countries around the world ...
Smoker melanosis in a patient consuming 2 packs of cigarette per day. Smoking or the use of nicotine-containing drugs is the cause to Smoker's melanosis. [10] [11] Tar-components (benzopyrenes) are also known to stimulate melanocytes to melanin production, and other unknown toxic agents in tobacco may also be the cause.
Smoking tobacco causes various types and subtypes of cancers [94] (particularly lung cancer, cancers of the oropharynx, [95] larynx, [95] and mouth, [95] esophageal and pancreatic cancer). [18] Using tobacco, especially together with alcohol , is a major risk factor for head and neck cancer . 72% of head and neck cancer cases are caused by ...
Tobacco smoke, for example, causes 90% of lung cancer. [48] Tobacco use can cause cancer throughout the body including in the mouth and throat, larynx, esophagus, stomach, bladder, kidney, cervix, colon/rectum, liver and pancreas. [49] [50] Tobacco smoke contains over fifty known carcinogens, including nitrosamines and polycyclic aromatic ...