Seasonal affective disorder: a vestigial evolutionary advantage?

Seasonal affective disorder: a vestigial evolutionary advantage?
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DOI:
10.1016/j.mehy.2004.07.002
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发表时间:
2004-01-01
期刊:
影响因子:
4.7
通讯作者:
Eagles, JM
Eagles, JM
中科院分区:
医学4区
文献类型:
--
作者:
Eagles, JM

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复发性冬季抑郁症的典型症状包括情绪低落、嗜睡、嗜睡、社交退缩、性欲下降、食欲增加和体重增加。轻度轻躁狂多发生在春夏两季。有人认为,这种模式的衰减冬眠构成了一个适应性的进化机制,提高了繁殖成功的可能性,最显着的女性,生活在温带地区的人口。妇女更有可能在夏季怀孕,因此在一年中婴儿存活率较高的时候分娩。冬季抑郁症症状也促进了更健康的怀孕,并增强了女性配偶的配对关系,从而提高了母亲和婴儿的生存机会。在春季和夏季的轻躁狂也有助于增加在一年中最佳时间生育的可能性。在现代,经常性的冬季抑郁症可能正在成为生殖方面的不利因素。(C)2004爱思唯尔有限公司保留所有权利。
The typical symptoms of recurrent winter depression include lowered mood, lethargy, hypersomnia, social withdrawal, decreased libido, increased appetite and weight gain. Mild hypomania often occurs in spring and summer. It is argued that this pattern of attenuated hibernation constituted an adaptive evolutionary mechanism which enhanced the likelihood of reproductive success, most notably for females, among populations living at temperate latitudes. Women were more likely to become pregnant in the summer and thus to give birth at a time of year when their babies had a higher chance of survival. Winter depression symptoms also promoted healthier pregnancies and gave rise to enhanced female-mate pair-bonding which improved the survival chances of both mothers and babies. Hypomania in spring and summer also served to increase the likelihood of procreation at the optimal time of year. In the modern era, it is probable that recurrent winter depression is becoming a reproductive disadvantage. (C) 2004 Elsevier Ltd. All rights reserved.