why not talking/not speaking for 2 to 4 hours doesn’t change your voice but after you wake up from a 1 hour nap your voice sounds sleepy.
In: Biology
Same reason your voice sounds different when you are excited versus when you are sad. It’s less about your vocal chords and more about your mental state. Staying silent for 4 hours does not put you in the same mental state as napping and just waking up.
While awake you’re still moving the muscles in your throat through swallowing and other movements. Sleeping you don’t do that as much if at all.
It’s called sleep inertia.
Think of a complex heavily loaded system (like a PC) rebooting. You just wait for few moments before all is perfectly set and activated. Anything you do this point may appear abit lagging or lil freezy. That’s waking up.
Now consider that system after booting lying idle for hours, still the moment you touch the keyboard/mouse it responds instantly. That’s how it works with our body.
Sleep is the default natural resting state of many living beings (putting halt to some of the physiological activities while triggering few others)
It takes some time post waking up to reboot and initialise everything from this resting state. Once completely awake, the alert body state, even if it’s apparantly motionless, has actually been activated and all set on many levels and so now it doesn’t make one feel sluggish anymore.
PS: In the majority of cases, morning sleep inertia is experienced for 15 to 30 minutes after waking.
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