Sleep Problems : What Are the Cycles of Sleep?

670 views · Published 8 July 2009 · 1:13 · Indexed 20 September 2026

Channel: ehow · 2009 · Howto & Style

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Sleeping cycles are usually divided into two, including non-REM cycles and REM cycles, which represent the rapid eye movement stage. Find out how the cycles of sleep are related to brain activity with help from a psychologist in this free video on sleep cycles.

Expert: Robert B. Hernandez
Contact: www.discoveringmyself.com
Bio: Robert B. Hernandez, PsyD, received his doctorate in clinical psychology in 2001.
Filmmaker: Paul Muller

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