2. Left-handers have a shorter lifespan. It has been quoted, for what seems to be ages, that left-handed people have a shorter life span by nine years than their right-handed peers. This information was shared in the 1980s in two scientific journals -- "Nature" and the "New England Journal of Medicine" -- by psychologists Diane Halpern and Stanley Corenboth. But critics of the study have pointed out that some of the subjects of the study could have been right-handed, since it was common to train a child to use the that hand, and thus, the data was erroneous.

2. 左撇子寿命相对较短。据多年的观察表明，左撇子平均寿命比右撇子少九年。二十世纪八十年代，这项发现由心理学家黛安·哈普恩和斯坦利·科恩波斯发表在《自然》和《新英格兰医学期刊》上。然而评论家指出，这项研究的某些样本其实是右撇子，因为孩子常被训练使用右手。因此，该数据是错误的。

3. Left-handers do worse on timed exams. It could be because of the right-handed desks in school or awkward sitting positions, but left-handers do worse on timed exams. Lefties, know that you can ask your school for special seating on your exam to accommodate your hand dominance!

3. 左撇子在限时考试时表现较为不好。这可以归结为学校里的桌椅都是适合右撇子的设计，但是一旦考试限时，左撇子的表现会变得更不好。左撇子们注意了，在学校考试的时候你是可以根据自己需要要求特殊座位的！

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