吸烟有害身体健康之类的英语作文，答就有分

吸烟有害身体健康之类的英语作文，答就有分

Tobacco use accounts for at least 30% of all cancer deaths in the United States. Smoking causes about 87% of lung cancer deaths. Smoking also causes cancers of the larynx (voice box), mouth, pharynx (throat), esophagus (swallowing tube), and bladder. It also has been linked to the development of cancers of the pancreas, cervix, kidney, and stomach and some types of leukemia. Cigars, pipes, and spit and other types of smokeless tobacco all cause cancers, too. There is no safe way to use tobacco.
Tobacco use accounts for at least 30% of all cancer deaths in the United States. Smoking causes about 87% of lung cancer deaths. Smoking also causes cancers of the larynx (voice box), mouth, pharynx (throat), esophagus (swallowing tube), and bladder. It also has been linked to the development of cancers of the pancreas, cervix, kidney, and stomach and some types of leukemia. Cigars, pipes, and spit and other types of smokeless tobacco all cause cancers, too. There is no safe way to use tobacco.
Smoking cigarettes increases the risk of heart disease, which is the number one cause of death in the United States. Smoking, high blood pressure, high cholesterol, physical inactivity, obesity, and diabetes are all risk factors for heart disease, but cigarette smoking is the biggest risk factor for sudden death from a heart attack.
A smoker who has a heart attack is more likely to die within an hour of the heart attack than a non-smoker. Cigarette smoke can harm the heart at very low levels, even when the amount is too low to cause lung disease.
About half of all the people who keep smoking will die because of it. In the United States, tobacco causes nearly 1 in 5 deaths, killing about 438,000 Americans each year. Smoking is the single most preventable cause of death in our society.

Based on current patterns, smoking will kill about 650 million people alive in the world today. If these patterns continue, tobacco-caused deaths worldwide are expected to increase from about 5 million per year today to about 10 million per year by the 2030s. Most of these deaths will happen in developing countries.