Causes
Stages
Disorders
100
Stress
What is overthinking school, work, and social life
100
Stage 2
What is the stage where the heart rate lowers along with body temperature
100
Insomnia
What is the disorder where one can't fall asleep
200
Illness
What is cold and allergies
200
Stage 1
What is the sleep where one can be woken up easily
200
Restless Leg Syndrome
What is the disorder where one can feel pins and needles in the leg
300
Environment
What is loud and uncomfortable surroundings.
300
Rapid Eye Movement
What is REM
300
Central Sleep Apnea
What is the brain not sending signals to the body to breathe
400
Personal Choice
What is over watching TV, staying up to do homework
400
Non Rapid Eye Movement
What is NREM
400
Obstructive Sleep Apnea
What is the disorder for blocked breathing