Sleep

New research suggests that while habitual coffee consumption shortens sleep duration, it increases deep sleep intensity. This indicates the brain may adapt to chronic caffeine intake to ensure restoration.

Chronic sleeplessness may result from a failure of the brain’s internal timing. A study in Sleep Medicine indicates that individuals with insomnia lack the strong circadian cues needed to downregulate mental activity for sleep.

While the dangers of sleep deprivation are well-known, recent studies suggest sleeping over nine hours is also linked to health risks.

Your attitude toward the past and future may shape your daily rhythms. A new study suggests this connection influences depressive symptoms, linking your mindset directly to your well-being.

An international team has created the largest-ever public database of brain activity and dream reports. A first analysis reveals that during deep-sleep dreams, the brain exhibits patterns resembling wakefulness.

A new study finds that the brain’s energy use and blood flow change in coordinated yet region-specific ways during sleep. Sensory areas remain active, which may help explain how we stay alert to important sounds while asleep.

Once a niche therapeutic tool, weighted blankets are now marketed to anyone struggling with modern stress. They promise better sleep and less anxiety, but the science is far more nuanced.

New research suggests that an individual's underlying vulnerability to stress plays a key role in how pre-sleep thoughts can fragment their night's rest, helping to explain why some people are more prone to developing sleep problems.

A study in Japan found a simple way for older adults to improve sleep: taking a hot-tub bath before bed. Published in Sleep Health, the research showed this habit was especially effective during the winter months.

A new study of over 27,000 adults reveals a direct link between poor sleep and accelerated brain aging. Researchers found those with unhealthy sleep habits had brains that appeared structurally older on MRI scans than their chronological age.

A new study reports that dreams featuring supernatural events can influence a person’s daily feelings of closeness to God. Published in Frontiers in Psychology, the research shows this effect can be delayed by several days.

For some, sleep brings a strange awareness of nothing at all. This rare state of "conscious sleep" is now being studied by scientists to help solve the mystery of what it means to be conscious.

To truly understand sleep's role in well-being, scientists are looking directly at the brain. A new study combines detailed sleep data with brain imaging to investigate how individual differences in rest are reflected in our neural wiring and daily lives.

Many adolescents with ADHD struggle with both sleep and homework, creating a nightly challenge for families. Researchers recently investigated the connection between these issues, exploring whether poor sleep directly contributes to the academic difficulties often seen in these teens.

Could poor sleep be accelerating your brain's aging process? New research suggests it might. A study in Neurology found that chronic insomnia is associated with a more rapid decline in cognitive skills, equivalent to an extra 3.5 years of aging.