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Sleep Hormones Explained: How Melatonin and Cortisol Affect Your Sleep Quality
Figure 1. The body’s circadian rhythm is regulated primarily by melatonin and cortisol, which work together to control the sleep-wake cycle. Sleep is one of the most important pillars of good health, yet millions of adults struggle with poor sleep every night. While many people blame stress, caffeine, or aging, the real answer often lies…