Terminology Related to Sleep Disorders

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  • 0:01 Sleep Disorders
  • 0:25 Insomnia & Sleep Deprivation
  • 1:37 Narcolepsy & Somnambulism
  • 3:10 Lesson Summary
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Lesson Transcript
Instructor: Artem Cheprasov
In this lesson, we will go over two sides of sleep disorders. One will focus on disorders pertaining to a lack of sleep, while the other will define disorders associated with too much sleep or sleeping at an unusual moment.

Sleep Disorders

You know, as much as I love doing all sorts of cool stuff in my waking life, I just love getting under the covers at night for some sleep. And while I don't always sleep tight or well, I usually don't have much trouble. Unfortunately, the same can't be said for everyone. Let's explore a few terms related to sleep disorders.

Insomnia & Sleep Deprivation

One thing I don't miss about school is all those tests you have to study for. I never really drank caffeinated stuff even when cramming for exams. My motto was that if I didn't know it by 11 p.m. the night before, I wouldn't know it at 7 a.m. when I woke up for the test either. So I just went to bed and got some rest instead. That worked pretty well for me. But I saw many people chugging jugs of coffee or energy drinks. And that excessive caffeine led many of my classmates to suffer from insomnia, a disorder where the person has difficulty falling asleep, staying asleep, or both.

Caffeine is not the only cause of insomnia. Medication, stress, depression, and medical conditions of all sorts can lead to insomnia. In a way, the classmates who chugged lots of caffeine for several days prior to an exam as they were cramming for it were really self-inducing sleep deprivation, a prolonged period without the usual amount of restorative sleep, such that physical or psychiatric symptoms affecting performance and routine tasks may manifest. Maybe that's why so many of them didn't do so hot on those tests?

Narcolepsy & Somnambulism

On the opposite side of the spectrum here were classmates who seemed to be asleep all of the time. They slept in class and even seemed to be sleeping when walking next to me. Maybe it's because they were really tired or maybe they suffered from actual medical conditions. One of these is probably familiar to you: narcolepsy.

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