Your brain set its own alarm
Why Do We Wake Up Before the Alarm?
Waking up just before your alarm is your circadian rhythm doing its job. Your brain anticipates the wake time and starts preparing your body to rouse.
sleepcircadian rhythm
Biology & Physiology
Why Do We Stretch After Waking Up?
The urge to stretch after sleep is called pandiculation. It reactivates muscles, restores circulation, and recalibrates the nervous system after hours of immobility.
stretchingpandiculation