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Sleep Spindles: The Brain’s Hidden Rhythm for Rest

By Mohammed looti / / 1 min read
Scientifically Reviewed · Dr. Marwa Abd-Alazim · August 25, 2026
Medically & Scientifically Reviewed Verified: August 25, 2026
Dr. Marwa Abd-Alazim Ph.D.
Professor of Psychology • University of Kerbala
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This content undergoes rigorous scientific peer-review and medical editorial standards at Arab Psychology Network to ensure clinical accuracy, validity, and compliance with evidence-based guidelines from leading psychological and healthcare authorities (APA / WHO).

Sleep Spindles: The Brain’s Hidden Rhythm for Rest

These are spindle shaped traces on an EEC during sleep stage 2 that are short bursts of 15Hz waves that increase and decrease in amplitude. K complexes are often followed by sleep spindles.

SLEEP SPINDLES: “Sleep spindles indicate we are sleeping lightly.”
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About the Author: Mohammed looti

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looti, M. (2026, August 25). Sleep Spindles: The Brain’s Hidden Rhythm for Rest. Encyclopedia of psychology. https://encyclopedia.arabpsychology.com/sleep-spindles/
looti, Mohammed. “Sleep Spindles: The Brain’s Hidden Rhythm for Rest.” Encyclopedia of psychology, 25 August 2026, https://encyclopedia.arabpsychology.com/sleep-spindles/.
looti, Mohammed. “Sleep Spindles: The Brain’s Hidden Rhythm for Rest.” Encyclopedia of psychology. August 25, 2026. https://encyclopedia.arabpsychology.com/sleep-spindles/.

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