Sleep

New research finds that sleep disorders are associated with increased dementia risk. People with insomnia or obstructive sleep apnea were significantly more likely to develop Alzheimer’s disease and vascular dementia, emphasizing the role of sleep health in cognitive aging.

New research reveals that long-term sleep disorders and short-term sleep deprivation impact different parts of the brain, highlighting distinct patterns of structural and functional changes.

After a loss, people often continue to feel the presence of the deceased—in dreams or even while awake, according to new psychological research.

Flight attendants who prefer late nights and avoid emotional closeness may be more prone to depression. The study highlights how circadian rhythms and attachment styles interact to shape mental health in this high-stress, jetlag-prone profession.

People with insomnia who took CBD nightly for two weeks reported better mood the next day, though their thinking and memory remained unchanged, researchers found.

A new study suggests that how well you sleep may influence how much you believe in conspiracy theories.

Could a bit of morning sunlight be the secret to waking up refreshed? A new study suggests the timing of natural light exposure may make all the difference.

Nightmares often follow a night of disrupted sleep, according to new research—but having a nightmare doesn’t necessarily cause worse sleep afterward.

Sleep and addiction are deeply intertwined, and new research suggests that disrupted circadian rhythms may drive opioid dependence.

Spending more time on screens after bedtime is associated with shorter sleep and a higher chance of insomnia, researchers report.

New findings suggest that sleep problems may be the missing link between chronic diseases and depression, shedding light on an important yet overlooked factor in mental health.

A lack of sleep may do more than make teens groggy—it could contribute to anxiety, depression, and eating disorders through the cycle of repetitive negative thinking.

A recent study in China produced unusual findings about the relationship between physical activity and sleep quality in university students, particularly those with insomnia.

A six-hour sleep disruption in mice weakened fear memory consolidation and increased brain-derived neurotrophic factor mRNA levels.