Getting a good night's sleep can be challenging for many people. Recently, American biohacker Dave Asprey appeared on The Iced Coffee Hour Podcast and suggested two simple bedroom changes that could significantly improve sleep quality. He recommended installing inexpensive red light LED bulbs and purchasing blackout curtains, claiming these additions can transform overall well-being. Asprey explained that historically, humans were never exposed to bright white lights during nighttime hours. Instead, only moonlight and firelight illuminated the night. When modern bright lights are switched on, the body's internal timing system mistakes it for daytime, triggering hormonal changes that may contribute to anxiety and depression. Health experts were consulted to verify these claims. Doctors confirmed that both red light bulbs and blackout curtains effectively support the body's natural sleep-wake cycle, also known as the circadian rhythm, by creating an optimal sleep environment that encourages melatonin production and uninterrupted rest.
How Red Light and Darkness Support Better Sleep
Medical professionals agree that red light bulbs and blackout curtains work together to create ideal sleeping conditions. During evening hours, exposure to bright or blue light from screens and standard bulbs suppresses melatonin, the hormone that induces sleep. Red light, with its longer wavelength, has minimal impact on melatonin production, helping the brain recognize it is time to rest. Blackout curtains block external light sources such as streetlights, car headlights, and early morning sunlight. This darkness signals the brain to release melatonin, promoting deeper sleep. By maintaining a consistent circadian rhythm, these two additions reduce nighttime awakenings and improve both sleep duration and quality, positively affecting mood, focus, and overall health. Always consult a health practitioner before making changes.
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