Most people have a clear internal daily rhythm, called a circadian rhythm, that sets natural peaks and dips in alertness. A person’s preferred timing is their chronotype. Morning types, often called...
Health > Sleep
Ashwagandha may ease stress and improve sleep, but it is not risk free
Ashwagandha is a plant used in Ayurvedic medicine. It is often called an adaptogen, meaning a substance that may help the body cope with stress. A medical news report highlights growing interest in...
Acute sleep deprivation increases inflammation, lowers cortisol, and impairs cognition in young adults
A study on the effects of 24 hours of sleep deprivation in young healthy adults revealed significant disruptions in emotional, cognitive, and physiological responses. Participants exhibited...
Human brain not designed to stay awake after midnight
Scientists propose the Mind After Midnight hypothesis, arguing that the brain shifts into a markedly different mode when we stay awake after the biological night begins. During these hours,...
Sleep role in muscle recovery from exercise-induced injuries
The relationship between sleep and recovery from exercise-induced muscle injuries, with a focus on athletes and military personnel. Insufficient sleep combined with high training loads increases the...
Poor sleep quality and daytime napping increase risk of depersonalization in university students
A study on female university students found that poor sleep efficiency and frequent daytime naps significantly increase the risk of depersonalization disorder. Sleep efficiency improvements were...
Sleep deprivation impairs driving more than legal alcohol limits
A study comparing sleep deprivation and alcohol on driving performance found that 24 hours of wakefulness impairs drivers more than being slightly above the legal alcohol limit. Sleep deprivation...
Sleep deprivation kills by damaging the gut, but antioxidants may help
Almost every animal sleeps, and going without it can be fatal. For a long time, scientists assumed that because sleep happens in the brain, the lethal effects of sleep loss must also start there. A...
Sleep deprivation’s effects comparable to alcohol intoxication, warns NIO
Sleep deprivation significantly impairs cognitive and physical functioning, likening its effects to alcohol intoxication. Staying awake for 17 hours equates to a blood alcohol concentration (BAC) of...
Sleep deprivation leads to hallucinations and psychotic symptoms with prolonged wakefulness
A systematic review of 21 studies on sleep deprivation shows that going without sleep for extended periods causes visual, auditory, and somatosensory hallucinations, progressing toward psychosis....
Sleep deprivation makes you angrier by disrupting brain control
A growing body of research confirms that losing sleep does more than make you tired; it directly fuels anger and aggression by breaking the brain's ability to process emotions. Studies show that...
Effects of sleep deprivation: from craving carbs to health risks
In an experiment to understand the impact of sleep deprivation, ABC News correspondent Dan Child stayed awake for 50 consecutive hours, revealing significant effects on concentration, coordination,...
Micro sleeps highlight the dangers of sleep deprivation
Micro sleeps are brief moments when the brain involuntarily shuts down, leading to lapses in awareness that are nearly impossible to resist. These unconscious moments, driven by hormonal changes,...
Adults should aim for 7 or more hours of sleep to maintain optimal health
A panel of leading sleep experts has concluded that adults between the ages of 18 and 60 need at least 7 hours of sleep per night to stay healthy. The consensus statement, released by the American...
Chronic alcohol use disrupts sleep, contributing to dependence and relapse risk
Alcohol's acute and chronic effects on sleep and its impact on sleep architecture Alcohol initially reduces sleep onset latency and enhances slow-wave sleep, but later disrupts sleep quality....