smoking-related diseases抽烟引起的疾病

lose weight减肥

go on a diet节食

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under the weather生病、不舒服

flight-headed头昏眼花

drowsy昏昏欲睡

flu流感

epidemics瘟疫

rampant猖獗的

contract infections得传染病

pick up the habit养成这种习惯

physical and mental condition身体与精神状态

overweight/fat肥胖的