Why You Wake Up at 3AM (Your Ancestors Did Too)

Wide awake at 3am, replaying something you said in 2014? You're not broken. For most of human history, waking up in the night was normal, and the part of your brain that wakes you up is doing a 50,000-year-old job. In this video: 00:00 3:07 AM 00:23 Is something wrong with me? 00:53 Tok's night 01:19 #1 The night watch 02:00 #2 The first sleep 03:07 #3 The dark mind 03:54 What to do instead 04:35 You're on night watch Sources: Samson, D. R. et al. (2017). Chronotype variation drives night-time sentinel-like behaviour in hunter-gatherers. Proceedings of the Royal Society B. Ekirch, A. R. (2005). At Day's Close: Night in Times Past. Yetish, G. et al. (2015). Natural sleep and its seasonal variations in three pre-industrial societies. Current Biology. Wehr, T. A. (1992). In short photoperiods, human sleep is biphasic. Journal of Sleep Research. This video is for general education, not medical advice. If poor sleep is affecting your life, talk to a doctor. #sleep #insomnia #psychology #ancientbrain #3am