You can wake up naturally or be forced to wake up by e.g. loud noise, pain, water.
How does it work?
Bonus question: Why is it possible to cut your blood supply to your arm and not be woken up for hours? (I slept on my arm for 6 hours, felt no arm after waking up)
In: 31
A part of your brain is always active even while you’re sleeping. That part can monitor for natural dangers, which a loud noise, pain, water would all be perceived as, and wake you up.
edit: for your bonus question, you’re not cutting off the blood supply to your arm when you sleep on it, you’re squeezing a nerve, but I’m not sure of the details so maybe someone else can take over that one!
Scientists recently discovered an enzyme pathway involved in waking. SIDS (Sudden Infant Death Syndrome) is caused by a genetic defect where babies don’t have enough of that enzyme.
I check my alarm clock on my phone every 15 minutes throughout the night wondering if I overslept until it’s the morning, an hour before I have to wake up, next time I wake up I realize I overslept and panic rush to get ready for work
Cutting off the blood supply is, I believe, just cutting off the nerve connections to you brain. After that communications are cut off wit the arm then it goes into a phase where it connects back to the brain causing the “pins and needles” feeling
Cats. They are meat, grain and vegetable powered machines that wake you up when they require more fuel. Usually 2 hours too early but atleast they are consistent.
I call him Jimmy. He’s my cat… and he freaks out both when the sun goes down and when it comes back up and lets EVERYONE know it’s happening.
What are you talking about, mornings are the definition of Satan. 7 alarms later, with my alarm clock in the kitchen, and I still end up back in bed
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