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肚子圆生女孩，肚子尖生男孩；孕期懒生女孩，孕期勤快生男孩……很多过来人都有自己的一套“怀孕经”，有些是长辈那里听说来的，有些是根据自己和别人的怀孕经历得出的规律，那么这些“怀孕经”是否真的那么神奇？科学家告诉我们，虽然这些怀孕理论多属无稽之谈，但还是有一些看似迷信的老话其实是有科学道理的。 Most of the folk wisdom that well-meaning older relatives offer up to expectant mothers can be easily ignored: Carrying the baby lower in the abdomen isn't a sign that it's a boy, or a girl, or anything other than an indication your abdominal muscles have loosened up a bit. 大多数长辈好意传授给准妈妈的民间智慧很容易被击破：例如，通过婴儿是否在肚子下方的迹象并不能说明他是男孩还是女孩，或者其他什么东西，这只能说明你腹部的肌肉有点松弛。 Your cravings won't manifest themselves as birthmarks on the kid's skin. Long walks won't induce labor. 你的生理欲望不会变成孩子皮肤上的胎记。长时间的散步也不会助产。 And no, the full moon has nothing to do with the timing of the birth. 并且满月与婴儿的出生时间毫无关系。 But in recent years, a handful of studies have found that some of the most outlandish old ideas concerning babies and pregnancy may have some scientific merit after all. | 
