Почему мы зеваем?
Думаете, зевание увеличивает содержание кислорода в мозгу? Вот вам еще одна версия.
Переведено и озвучено:
Оригинал:
7 months ago 00:21:43 1
![Антибиотики - [История Медицины]](https://sun9-25.userapi.com/NPag3zUWzCsRoo6TFYlUTPA1Y0vGqcEMgPCgYQ/tmyc2Bf8Omo.jpg)
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