I’ve been really intrigued by how the body repairs itself during sleep - especially after learning more about the Traditional Chinese Medicine (TCM) concept of the organ clock. It’s fascinating to think that, while we’re lying there in the dark, different organs are going through their own cycles of detox and healing. According to TCM, the liver, for example, is most active between 1 and 3 a.m., cleansing the blood and clearing out toxins. Then, from 3 to 5 a.m., the lungs take over, helping us release what we no longer need - physically and emotionally. It’s such a beautiful reminder that rest is not just about recharging your energy; it’s when your body quietly goes to work, doing things you don’t even realize are happening.
Western medicine supports this too. Deep sleep helps the body repair tissues, balance hormones, and strengthen the immune system, while REM sleep supports the brain in sorting memories and emotions. Melatonin, the body’s natural sleep hormone, usually peaks around 2 a.m., which aligns closely with these important repair cycles.
Personally, I’ve noticed my sleep improves when I stay active during the day, get some sunlight, and give myself a calm, screen-free wind-down routine in the evening. Blue light - from phones, tablets, and computer screens - can really interfere with melatonin production and disrupt sleep. On the other hand, red light has been shown to support sleep and healing in a variety of ways. (see https://theartofantiaging.com/emerging-health-benefits-of-red-light-therapy/ ). I’ve started using softer, warmer lighting in the evenings, and it makes a noticeable difference.
Sleep isn’t just a break from the day - it’s when your body and mind are actively healing, restoring, and preparing you for everything that comes next. The more I learn, the more I see it as a quiet, powerful form of medicine.
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