Examlex
A rock that contains a large enough concentration of a particular mineral to profitably mine and extract is called:
Adequate Sleep
The sufficient amount of sleep required for optimal health and functioning, varying by age and individual needs.
Circadian Rhythm
The internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.
EEG Activity
The recording of electrical activity along the scalp produced by the firing of neurons within the brain, typically used to diagnose sleep disorders, epilepsy, and brain diseases.
Light Sleep
A stage of sleep characterized by low amplitude, high frequency brain waves and easier arousal compared to deeper sleep stages.
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