Is it dangerous to your health to be startled awake? I keep asking my mother to quietly call my name to wake me. Instead, she yells my name, loud and staccato..."JO-DY!!" My body goes from a deep, calm restful sleep to being startled awake...with rapid heartbeat... instantaneously.
That can't be good for your heart and body, to go from deep sleep and a low, resting heartbeat of say 60, to wide awake, startled and with a heartbeat of 127, can it??? (I usually lie there and try to bring my heart rate back to normal before rising...)