Chronic stress and mooddepression is caused by hypertension and other chronic diseases of the important reasons.
长期精神压力和心情抑郁是引起高血压和其他一些慢性病的重要原因之一。
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I spent the afternoon thinking about my friends, body and mooddepression, unpredictable moods twisting, late night phone calls, obsessing about relationship.
Since nicotine in cigarettes changes brain chemistry, perhaps thereby affecting mood, it is likely that smoking contributes to depression in teenagers.