Examlex
The opacity of the atmosphere is partially corrected via adaptive optics.
Sedatives
Drugs that have a calming effect, reduce nervousness, and help induce sleep by depressing the central nervous system.
Central Nervous System Stimulant
A class of drugs that increase brain activity, leading to increased alertness, attention, and energy.
Delta-Wave
A type of high amplitude brain wave that is associated with deep sleep and is found in the human EEG (electroencephalogram).
Snoring
The sound produced by vibrations of the soft tissues in the throat and airway during sleep.
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