研究2009.12.14/28，发表在《内科医学文献》上。
The studyappeared in the December 14/28, 2009, Archives of Internal Medicine.
内科医学文献期刊研究表明：那些每周至少吃一块巧克力的人比那些偶尔吃一点巧克力的人表现的更忧郁。
Research in Archives of Internal Medicine shows those who eat at least a bar every week are more glum than those who only eat chocolate now and again.
《内科医学文献(Archives of Internal Medicine)》公布的一份研究报告表明，如果平均每晚睡眠少于7小时，得感冒的几率翻两倍。
A study published in the Archives of Internal Medicine suggests that if you average less than seven hours of sleep per night, your chances of catching a cold triple.
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