Examlex
What is the primary reason poor people often have more children?
Stage 4
In the context of sleep, this refers to the deepest stage of NREM (non-rapid eye movement) sleep, characterized by the presence of delta waves and considered crucial for restorative sleep.
REM
Rapid Eye Movement, a sleep phase characterized by fast and random movements of the eyes, associated with vivid dreaming and increased brain activity.
Alpha Waves
Brainwave patterns associated with relaxed wakefulness and meditation, typically in the frequency range of 8 to 12 Hz.
Meditating
The practice of focusing one's mind in silent reflection for the purpose of relaxing or spiritual growth.
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