Eli5: Why cant we just signal to our brain when we want to fall asleep?

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When we lay down at night why our brain does not recognize it and make us fall asleep much easier? Interesting that we have control over so much things but not our own body.

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Anonymous 0 Comments

I think there are a few different points that touch on that –

1- Sleep isn’t like a computer shutting down. Your brain is actively working when you sleep, just in very different ways to your awake state. This shift from one mode to the other takes time, and that shift is also dependent on many outside factors because:

2- The brain isn’t isolated from the world. The brain evolved to keep you alive *(Take note here: Not happy, fulfilled or satisfied with it’s services. Alive.)* which means it is always monitoring the world around around you to see what’s the best course of survival is. Over many many years of evolution, brains were molded into falling asleep under certain conditions – Low light, falling temperatures, safe environment etc. The lifestyle of humans changed much faster than those hardwired mechanisms could, so we ended up basically acting against ourselves in many ways. We actively sidestep many of those exact “now sleep” signals we evolved to react to, and we often not give our bodies the conditions and routines we need for it to do what we like. Our bodies depend on external and internal conditions because it’s a very complex, reactive system and:

**3- Your aware self which “you” control is a surprisingly small part of you.** Many people think the brain rules the body, and their “self” should rule the brain. The truth is actually very *very* different. Your body, brain included, is a system in which all parts are in a constant push-and-pull balancing act. What you think of as “me” is part of **the results** of this dance. This isn’t to say you are helpless in your own body. **Your self and choices have a huge influence on what’s going on!** But if you want to be in charge, you need to understand your role is manager, not dictator.

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