Your circadian rhythm is the biological clock that tells your body when it’s time to sleep, wake, eat, and recover. In this episode of Night Rhythm, we break down the science behind the suprachiasmatic nucleus, melatonin release, cortisol timing, and light exposure, then translate it into practical steps you can apply tonight. Learn how morning sunlight, consistent wake times, temperature shifts, and meal timing regulate sleep quality and cognitive performance.
If you struggle with insomnia, late-night alertness, social jet lag, or inconsistent energy, this guide offers evidence-based strategies to realign your internal clock. We explain how artificial light disrupts melatonin, why REM sleep depends on timing, and how to reset your rhythm without medication. Sleep is not random, it’s regulated. When you control the signals, you control the outcome.
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