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Stay up late Pressure Take less exercise Junk food pollution Noise Why do people get ill? ? Sleep eight hours and get up early every day. ? Take more exercise. ? Eat more fruit and vegetables. ? No smoking or drinking. ? Often open the windows and let fresh air in. ? Wash hands and clothes often. ? Clean your room every day. ? Don’t be too tired. ? Take good care of yourself. ? Keep good mood every day. How to stay healthy? of… 許多 (后接復(fù)數(shù) 可數(shù)名詞和不可數(shù)名詞 ) eg. If you run a f