Search results for sleep

“He says he does not see an effect in the sleep metrics he tracks when drinking ends with an early dinner. A consumer tracker showing no visible change does not establish that alcohol is harmless or exclude unmeasured sleep or physiological effects.”

“In particular, exposure to 30 to 40 minutes of bright light, early in the day, and exposure to lower light during the afternoon and evening hours can reset our internal clocks and improve our sleep. In this clip, Dr. Matthew Walker explains how altering the timing and duration of daytime light exposure influences sleep.”

“Sleeping pill use carries considerable risk, including susceptibility to a wide range of acute and chronic illnesses. A safer, healthier alternative to sleeping pills is cognitive behavioral therapy for insomnia (CBTI), which addresses the underlying causes of sleep problems.”

“The downstream effects of these food choices are weight gain and metabolic dysfunction. In this clip, Dr. Matthew Walker describes how sleep deprivation drives a preferential desire for high carbohydrate foods.”

“As such, sleep deprivation and poor sleep quality are inherently linked with many psychiatric disorders. In this clip, Dr. Matthew Walker describes how sleep impairs the opposing actions of the amygdala and prefrontal cortex to influence mood and mental health.”

“Higher-dose creatine has also been studied during severe sleep deprivation. In a randomized crossover experiment, 15 healthy young adults received a single dose of 0.35 grams per kilogram after being awake for about 21 hours.”

“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.”

“During sleep, the brain activates the glymphatic system, a self-cleaning process that rids the brain of metabolic byproducts. One of these byproducts is amyloid-beta, a toxic protein that aggregates and forms plaques in the brain with age and is associated with Alzheimer's disease.”

“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.”

“Natural killer cells are critical components of the body's immune response, serving as the first line of defense against cancer cells, microbes, and other potential threats. A single night of poor sleep can impair natural killer cells' activity by as much as 70 percent.”