So we've had three explanations for why we might sleep, and I think the important thing to realize is that the details will vary, and it's probable we sleep for multiple different reasons.
Мөн хамгийн гол нь эдгээр тайлбарууд нь олон янз бѳгѳѳд бид хэд хэдэн өөр шалтгаанаас болж унтдаг байж болно.