Glossary H

Hyperthermia is defied as an above-normal increase in body temperature.

Hypertrophy refers to an increase in cell size.

Hypervigilant is the start of being overly sensitive to sounds or sights.

Hypnagogic hallucination refers to vivid dreamlike visions experienced by some patients of narcolepsy; a vivid , dreamlike intrusions into wakefulness that occur in the transition between wakefulness and sleep onset. Hypnagogic hallucination also refers to a vivid dreamlike hallucination that occurs as one is falling asleep. It is the opposite of an Hypnopompic hallucination which is a vivid dreamlike hallucination that occurs as one is waking up.

Hypnagogic sleep refers to a stage of sleep which is neither dreaming nor

Hypnic jerk when feeling a falling sensation when going to sleep, one jerks to stop from falling.

Hypnopompic that which pertains to the semi-conscious state before waking.

Hypnopompic hallucination refers to the type of Hallucination which is a vivid dreamlike Hallucination on awakening.

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