Sleep

An analysis of data from the Human Connectome project indicates that chronic cannabis use in females, but not in males, is associated with a reduced volume in the cerebellum region of the brain and diminished sleep quality. This reduced sleep...

A recent study in BMC Psychiatry found a significant association between inadequate sleep and an increased risk of suicidal thoughts and behaviors among American teenagers. The research, analyzing data from over 103,525 adolescents from 2007 to 2019, discovered that those...

A study in Behavioral Sleep Medicine has revealed that romantic relationships, either starting or ending, can negatively affect sleep quality in adolescents, particularly younger female teens in China. The research found significant associations between romance and insomnia symptoms, with cultural...

Dreams and nightmares, most vivid during REM sleep, are influenced by factors like age, exercise, temperature, and cortisol levels, serving physiological and cognitive purposes like brain "cleaning" and memory consolidation. While scientific understanding of the mechanisms behind dreaming is progressing,...

A study on members of the Royal Netherlands Air Force found that 200 mg of modafinil and 300 mg of caffeine effectively counter the adverse effects of being awake for 17 hours on vigilance. The effect of modafinil seems to...

A series of three studies involving Australian and Irish university students found that sleep characteristics mediate the relationship between social class and both physical and mental health. The results suggest that students from higher social class backgrounds may, in part,...

An analysis of the UK Biobank data discovered that individuals sleeping less than 6 hours without daytime drowsiness possess larger brain volumes than those who do sleep more or experience daytime sleepiness. Despite these intriguing brain volume differences, short sleepers...

A recent study from Radboud University indicates that fragmented sleep, characterized by brief awakenings during the night, is linked to an increased tendency to focus on negative thoughts and feelings the next day. The research particularly highlighted that out of...

A 5-month study on recently-separated adults found that those who spent more time with their ex-partner had decreased sleep efficiency, while individuals with higher attachment anxiety and more television watching also experienced poorer sleep efficiency. The research suggests that post-divorce...

Researchers from the California-based startup REMspace successfully transferred melodies from lucid dreams to reality using electronic sensors and specialized software. The study, which recorded melodies dreamt during lucid dreams via electromyography (EMG), opens possibilities for musicians to capture and share...

People who have a natural preference for staying up late tend to have poorer health habits, including sleep habits, which in turn is associated with reduced wages, according to new research published in Economics and Human Biology. The findings shed...

Researchers from Michigan State University's Sleep and Learning Lab have found that while caffeine may help maintain attention in sleep-deprived individuals, it does not reduce errors in complex tasks requiring placekeeping. The study also revealed that napping during an overnight...

A recent study in the Journal of Affective Disorders revealed that adolescents who use screens before sleep are likely to have a later biological clock and greater social jetlag, factors that elevate their risk of emotional problems. The study emphasized...

Unraveling the relationship between sleep and sexual health, a new meta-analysis reveals sleep disorders and poor sleep quality as potent risk factors for sexual dysfunction. By shining a light on the interplay of factors like sleep apnea, insomnia, and disrupted...

High-quality sleep and adaptive cognitive emotion regulation strategies can bolster resilience against depression and anxiety in the face of chronic stress, according to research published in Cortex. The study, conducted during the pandemic, highlights how these two factors independently contribute...