The hypothalamus contains the suprachiasmatic nucleus (SCN), which functions as the biological clock of the body.

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Sleep-wake cycles are controlled by multiple brain areas acting in conjunction with one another. Key areas involved in this regulation include the thalamus, the hypothalamus, and the pons.

Brain Areas Controlling Sleep-Wake Cycles

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Suprachiasmatic Nucleus (SCN) as the Biological Clock

The hypothalamus contains nuclei that work in conjunction with the thalamus to regulate slow-wave sleep.

Regulation of Slow-Wave Sleep

The pons is an important brain area for regulating rapid eye movement (REM) sleep.

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