AP PSYCHOLOGY

Detailed explanation-1: -Because of all the activity happening in your brain during REM, it’s rightfully earned the nickname of “paradoxical” sleep. This is because although your brain is more active than during NREM sleep, your body is actually more relaxed-to the point of paralysis in some cases.

Detailed explanation-2: -Why Is REM Sleep Called Paradoxical Sleep? Rapid eye movement (REM) sleep is called paradoxical sleep because it involves seemingly contradictory states of an active mind and a sleeping body.

Detailed explanation-3: -Rapid Eye Movement (REM) Sleep During REM sleep the brain is highly active. This stage is called active sleep. Most vivid dreams occur in REM sleep. In REM sleep, brain activity is comparable to that in waking, but the muscles are virtually immobilized, which prevents people from acting out their dreams.

Detailed explanation-4: -Paradoxical sleep refers to rapid eye movement (REM) sleep. During REM sleep, the eyes rapidly move back and forth. This is the phase of sleep during which vivid dreams often occur. Paradoxical insomnia means that a person believes they are awake when they are asleep or believes they have insomnia when they do not.