Their risky behaviors—drinking too much alcohol, using illegal drugs, smoking cigarettes and skipping school—can alert parents and teachers that serious problems are brewing.

他们酗酒、吸毒、吸烟和逃学的危险行为可以提醒家长和老师，严重的问题正在发酵。

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People watch their "heroes" on TV drinking alcohol or smoking cigarettes.

人们看着他们的“英雄”在电视上喝酒或抽烟。

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Smoking and drinking alcohol can make this problem worse.

吸烟和喝酒会使这个问题更为糟糕。

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Epidemiological studies have found that bad living--smoking, drinking too much alcohol, feasting on cheeseburgers--is responsible for 80% of one's risk of heart disease and almost all of the risk of diabetes.

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Other major risk factors for periodontal disease include genito-urinary infections, smoking and excessive alcohol drinking.

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The latest figures also show that fewer women are smoking and drinking alcohol during pregnancy and more are taking recommended supplements - folic acid and vitamin D.

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