AP PSYCHOLOGY

Detailed explanation-1: -Narcolepsy is a sleep disorder that makes people very drowsy during the day. People with narcolepsy find it hard to stay awake for long periods of time. They fall asleep suddenly. This can cause serious problems in their daily routine.

Detailed explanation-2: -Narcolepsy is a chronic neurological disorder that affects the brain’s ability to control sleep-wake cycles. People with narcolepsy may feel rested after waking, but then feel very sleepy throughout much of the day.

Detailed explanation-3: -What causes narcolepsy. Narcolepsy is often caused by a lack of the brain chemical hypocretin (also known as orexin), which regulates wakefulness. The lack of hypocretin is thought to be caused by the immune system mistakenly attacking the cells that produce it or the receptors that allow it to work.

Detailed explanation-4: -Types of narcolepsy Type 1 narcolepsy used to be known as “narcolepsy with cataplexy.” Type 2 used to be called “narcolepsy withoutcataplexy.” In very rare cases, a person may develop another type of narcolepsy known as secondary narcolepsy.

Detailed explanation-5: -There are 5 main symptoms of narcolepsy, referred to by the acronym CHESS (Cataplexy, Hallucinations, Excessive daytime sleepiness, Sleep paralysis, Sleep disruption). While all patients with narcolepsy experience excessive daytime sleepiness, they may not experience all 5 symptoms.