Search results for blue light

“In fact, research shows that reading a book on a device rather than reading an actual book reduces melatonin production by as much as 20 percent. In this clip, Dr. Matthew Walker describes the negative effects of blue light exposure on melatonin production and, subsequently, sleep.”

“Regulating the amount of light in our environment is crucial for a good night's sleep and a good mood the next day. Habits such as using blue light-emitting electronics close to bedtime can reduce melatonin production by as much as 20 percent, impairing sleep.”

“Many people are indoors during the daytime where they are not exposed to bright light, while artificial lighting allows light exposure during the night. Light exposure is essential for entraining a variety of bodily rhythms such as cortisol release and cytokine production.”

“For example, light and moderate drinkers have better dental hygiene, exercise routines, weight, diet quality, and income than abstainers. When these confounding factors are adequately controlled for, most or all of the protective effects of alcohol on disease risk are abolished.”

“Yellow and orange carotenoids absorb light in the high-frequency blue/violet range, making them particularly well-suited for protecting the body from ultraviolet radiation, which creates hydroxyl and oxygen radicals that can damage DNA.”

“For example, evidence indicates that afternoon exposure to blue light impairs the release of melatonin – the "sleepiness hormone" – in a dose-dependent manner. Similarly, use of LED-lit devices in the evening interferes with sleep by promoting alertness.”

“Limit evening light exposure by reducing artificial light 1–2 hours before bed and using dim, warm lighting or blue-light-blocking glasses. Time meals wisely by avoiding heavy meals within 2–3 hours of bedtime to prevent circadian disruption.”

“Aliquot #143: How to Reduce the Strain of Shift Work, covering circadian strain, resetting the clock, meal and sleep timing, and choosing a light-therapy box. Q&A #75 with Dr. Rhonda Patrick, including when blue-light-blocking glasses are useful, how to time light around jet lag, and how bright a light-therapy lamp should be.”

“- Dr. Rhonda Patrick. The ways in which UPFs cause overeating aren't perfectly understood, but one study shed light on a potential mechanism that puts the brain—not the stomach—at the center of it all.”