The risk of heart attack and stroke starts to drop immediately after a person stops using tobacco products, and can drop by as much as half after one year.
好消息是在人们停止使用烟草制品后心脏病发作和中风的危险立即开始下降，并且在一年后可下降达一半。
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Even a small drop in temperature leads to an increase in the number of people who suffer a heart attack, say researchers.
研究人员称，即使很小范围内的温度下降，也能导致心脏病发作人数的增加。
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Mr McCain needs to drop his current line of attack if he is to have any chance of doing his own popping.