Solidot: 科学家称婴儿晚上哭闹是为了阻止母亲再次怀孕

Solidot

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科学家称婴儿晚上哭闹是为了阻止母亲再次怀孕
http://solidot.org.feedsportal.com/c/33236/f/556826/s/39a8e27e/sc/38/l/0L0Ssolidot0Borg0Cstory0Dsid0F39263/story01.htm
Apr 23rd 2014, 11:51

婴儿在晚上突然大哭，筋疲力尽的父母起床寻找原因。是饿了、湿了、冷了，还是寂寞了？现在，哈佛大学的演化生物学家David Haig给出了一个邪恶的解释：婴儿晚上哭闹是为了阻止母亲再次怀孕。研究报告发表在《Evolution, Medicine and Public Health》上。因为另一个孩子意味着将要分享父母的爱，所以婴儿天生会尽一切可能阻止精子和卵子再次相遇。婴儿无法强迫母亲服避孕药，所以他们只有选择在晚上阻止母亲做爱，性欲中断、极端疲劳和频繁的夜间照顾会延迟哺乳期女性的生育。婴儿吃奶也会改变母亲的激素，压制排卵。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers.



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