At night, the room becomes quiet, but your body does not clock out.

Inside this episode:

- Rest Does Not Mean Inactive - The Heart Changes Gears - Breathing Continues Automatically - Hormones Keep Time - Metabolism Never Stops

Sources include the references linked below.

Sources and further reading: - [NHLBI, Why Is Sleep Important?](https://www.nhlbi.nih.gov/health/sleep/why-sleep-important) - [NINDS, Understanding Sleep](https://www.ninds.nih.gov/sites/default/files/2025-05/understanding-sleep.pdf)

This episode provides general education about sleep and the body. It is not medical advice, diagnosis, treatment, or an assessment of any listener.

Follow Sleep Science Explained for another clear look at what happens after you close your eyes.

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