Blue light makes the brain "mistakenly believe that daytime has arrived".
Dr. Berg points out that many people have trouble sleeping at night but feel tired during the day, not because of caffeine or stress, but because of blue light . When we use our phones, tablets, or computers before bed, the blue light emitted from the screen penetrates the eyeballs and reaches the suprachiasmatic nucleus in the brain , which is the center responsible for controlling the circadian rhythm.
Blue light signals can cause the brain to misinterpret "it is daytime," thereby suppressing the secretion of melatonin. Melatonin is a key hormone for promoting sleep; a lack of it not only makes it difficult to fall asleep but also increases anxiety, causes unstable blood sugar, and weakens the immune system.
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Melatonin is more than just a "sleep hormone".
Dr. Berger reminds us that melatonin's function goes far beyond helping with sleep; it is also a powerful antioxidant and immune modulator . Sleep deprivation weakens the immune system, making individuals more susceptible to colds and illnesses, and even impairing the body's repair mechanisms. A lack of melatonin also means the body loses a crucial defense against free radicals and inflammation.
To sleep well, first stay away from blue light.
Dr. Berg recommends avoiding strong light from electronic screens for 1 to 3 hours before bedtime. If you must use a mobile phone or computer, here are a few natural methods:
- Use blue light blocking glasses : Block the blue light wavelengths in the screen that suppress melatonin.
- Install a blue light filter app : Most mobile phones and computers have a "night mode" or "blue light filter" function.
- Switch to warm or red light bulbs : Red light can promote melatonin secretion and help the body relax.
- Reduce your use of electronic devices before bed : instead, relax by reading paper books, meditating, or stretching.
The Healing Power of Red Light: Nature's Relaxing Signal
Dr. Berg points out that the orange-red light of sunset and the warm yellow hues of candlelight are natural cues for humans to enter a state of rest. Red light and near-infrared radiation gently stimulate the body to release melatonin, making them safer and more effective than any sleep aid.
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Restore tranquility to the night by turning off blue lights.
True good sleep doesn't rely on medication or habitual procrastination, but rather on allowing the body to rediscover the rhythm of the night . When the brain is no longer deceived by blue light, melatonin levels naturally rise, and you'll find yourself falling asleep faster, sleeping more deeply, and feeling more energetic during the day.
YouTube source: https://www.youtube.com/watch?v=Sv6HTXHQKqE&list=PLlWQQPXW0GbzIXpSEiG6EUMK0r-iyAYJ8&index=32
YouTube Column: Dr. Berger's Chinese Health Knowledge
