AP PSYCHOLOGY

Detailed explanation-1: -Sleep terrors are episodes of screaming, intense fear and flailing while still asleep. Also known as night terrors, sleep terrors often are paired with sleepwalking . Like sleepwalking, sleep terrors are considered a parasomnia-an undesired occurrence during sleep.

Detailed explanation-2: -Insomnia, in which you have difficulty falling asleep or staying asleep throughout the night. Sleep apnea, in which you experience abnormal patterns in breathing while you are asleep. There are several types of sleep apnea. Restless legs syndrome (RLS), a type of sleep movement disorder.

Detailed explanation-3: -With REM sleep behavior disorder, instead of experiencing the normal temporary paralysis of your arms and legs (atonia) during REM sleep, you physically act out your dreams. The onset can be gradual or sudden, and episodes may occur occasionally or several times a night.

Detailed explanation-4: -Night terrors are a sleep disorder in which a person quickly awakens from sleep in a terrified state. The cause is unknown but night terrors are often triggered by fever, lack of sleep or periods of emotional tension, stress or conflict.