Lieberman says the idea “natural” humans sleep eight hours is unfounded; field data from communities without electric light show typical nightly sleep of about six to seven hours, contradicting the cultural prescription of eight hours as a target.
Author(s): Zhiyuan Huang, Lidong Ma, Jianbao Zhang, Dongpeng Hua, Qing Zhou, Lei Yang, Ji-Jung Kai, Haifeng Wang
，这一点在搜狗输入法2026中也有详细论述
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В Израиле заявили о гибели организатора покушения на Трампа14:49