(ANSWERED)
I get its to prevent dust etc from getting in, but when sleeping your body is usually relaxed and not tense, but dead people aka people who can litteraly not be tense dont have their eyes closed but slightly open, why do we sleep with our eyelids closed if they stay open when theyre not moved by muscles, doesnt our body then have to like constantly put a bit of restraint on the eyelids to keep them closed? or has it just become so natural that it barely matters
In: 38
Your eyelids are controlled by several muscles. One set opens the eyelids, the other set close the eyelid.
The close eyelid muscles (obicularis oculi) are not under conscious control, and are kept lightly contracted all the time. When awake the open eyelid muscles (levator palpebrae superioris) are strong enough to overcome the slight contraction and keep the eyes open.
So when those muscles relax when you sleep, your eyelid automatically close. Its like breathing.
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