3 doctors weighed in:
Why is that that sometimes right before you fall asleep your body does that "jump" thing or twitch?
3 doctors weighed in

Dr. Albert Pizzo
Family Medicine
2 doctors agree
In brief: Sleep and jump
There is an area of the brain called the "reticular activating center. This is sort of like a switch.
When you are drifting into sleep activating this switch changes one from the awake stage to the sleeping stage. When the switch is thrown then one sometimes experiences the "jump" or twitch.

In brief: Sleep and jump
There is an area of the brain called the "reticular activating center. This is sort of like a switch.
When you are drifting into sleep activating this switch changes one from the awake stage to the sleeping stage. When the switch is thrown then one sometimes experiences the "jump" or twitch.
Dr. Albert Pizzo
Dr. Albert Pizzo
Thank
Get help from a real doctor now
Dr. Bennett Machanic
Board Certified, Neurology
48 years in practice
55M people helped
Continue
108,000 doctors available
Read more answers from doctors