Depression may be triggered by stressful life events, other illnesses, certain drugs or medications, or inherited traits.

过高压力的生活事件，其它疾病，一些药物或治疗，或遗传因素等都有有可能引发抑郁。

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This may also be an important issue when you start certain medications, like lipophilic drugs-for example, sedation medications or hydrophilic drugs.

这也可能是一个重要的问题，当你开始服用某些药物，像亲脂性药物，例如，镇静药物或亲水性药物。

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Poor circulation has a number of potential causes, including blocked arteries, varicose veins, liver or kidney disease, extreme cold, or as a side effect of certain drugs or medications.

CNN: Does my numb leg mean I have a circulation problem?