Sleep

Sleep is a physiological behavior that is common in all animal species. It forms around one third of a human life. It is not known clearly the exact functions of sleep but it seems to be essential for survival as prolonged sleep deprivation leads to severe physical impairment followed by cognitive loss and eventually death.

How Morning Routines Influence Cognitive Performance, Mood, and Circadian Rhythm

How simple, evidence-based morning habits recalibrate the circadian system to sharpen cognition, stabilize mood, and support long-term mental health.

The Importance of Having a Good Night’s Sleep

Promoting Sounder Sleep in Older Adults

Sleep and Yoga

Difference Between Nightmares and Night Terrors

A Guide to Healthy Sleep Positions

Delayed Sleep Phase Disorder (DSPD) Management

Could Humans Ever Hibernate?

Stimulants and Sleep

Sleep Deprivation - Inadequate Quantity of Sleep

A Guide to Managing Sleep Disorders

Sleep and Hormones

See more featured articles »

Circadian Rhythm Sleep Disorders

REM Sleep Activity

How to Catch up on Lost Sleep

Sleep Hygiene

Importance of Sleep

Health Effects of Poor Sleep - Quantity and Quality

Causes of Nocturnal Awakenings

Why Do We Dream?

How Can Mindfulness Meditation Improve Sleep?

What Does Polysomnography Involve?

History of Sleep

The Health Risks of Oversleeping

Stages of Sleep

Ghrelin and Sleep

How Does Sleep Affect Your Immunity?

Nutritional Effects on Sleep

What is the Role of Melatonin in Sleep Regulation?

Does Your Alarm Sound Affect Your Mood?

How Long Should My Teenager Sleep For?

Can too much sleep be dangerous?

The DEC2 Gene and Sleep

What is Delayed Sleep Phase Disorder (DSPD)?

Why Do We Sleep?

Types of Sleep Disorders

Effects of Sleep Deprivation

What is Sleep Regression?

Sleep Onset Mechanics: Understanding the Transition from Wakefulness to Slumber

Regulation of Sleep

How Does Pain Affect Your Sleep?

How Long should my Child Sleep for?

Tips on Getting to Sleep

Function of Sleep

Hypnotics and Sleep

Management of Sleep Deprivation

Neuroscience of Sleep

Brain Activity During Sleep

What is the Circadian Rhythm?

Spoon Test for Sleep Deprivation

How Can Sleep Affect Men's Health?

Effect of Sleep on Your Emotions

Is Daytime Napping in Adults Good or Bad?

How Much Sleep do People Need?

Shift Work Sleep Disorder

What is Sleep?

Role of Sleep in Memory Consolidation

Causes of Sleep Deprivation

Latest Sleep News and Research

Lifelong tracking of fish reveals early behavioral signals of aging

Scientists tracking the entire life of the African turquoise killifish have discovered that behavior alone can predict whether an animal will live a long or short life.

12 Mar 2026

Study identifies seven distinct types of hyperarousal across mental disorders

Hyperarousal plays an important role in mental disorders. It influences the severity of insomnia, depression, anxiety, post-traumatic stress disorder (PTSD), and ADHD.

12 Mar 2026

Japanese study evaluates sleep architecture and safety of common insomnia drugs

OSA is a common sleep disorder characterized by oxygen desaturation due to repeated airway collapse during sleep.

12 Mar 2026

Everyday wearable data could reveal early brain health signals

Wearable sensors combined with AI offer a novel approach to continuous monitoring of cognitive and emotional health, detecting early changes in brain function.

12 Mar 2026

Does coffee disrupt sleep? Large population study suggests the impact may be minimal

A large cross-sectional analysis of 25,381 Swedish adults aged 50–64 found that habitual coffee consumption showed only very weak associations with sleep quality and daytime sleepiness. Genetic analyses confirmed known coffee-related variants and suggested that long-term caffeine exposure may lead to adaptation in the brain’s adenosine signaling system.

11 Mar 2026

Eating earlier in the day is linked to lower nighttime glucose in gestational diabetes

A secondary analysis of a randomized trial examined whether the timing of the first daily meal affects 24-hour glucose patterns in pregnancies with gestational diabetes. Earlier first meals were associated with lower nocturnal glucose levels and an earlier daily glucose rhythm, although overall glycaemic control metrics were similar between groups.

11 Mar 2026

Multiple concussions linked to slightly worse health in former college athletes

In former college athletes, having had three or more concussions was associated with slightly worse physical, mental, behavioral and cognitive health five years after graduation, according to an article published March 11, 2026, in Neurology, the medical journal of the American Academy of Neurology.

11 Mar 2026

Social isolation and loneliness raise cognitive decline risk in perimenopausal women

The relationship between social connections and cognitive abilities is a complex one, particularly during the perimenopausal period when women transition from the reproductive period to menopause.

11 Mar 2026

ADHD prescriptions surged during the COVID-19 pandemic

A study reveals COVID-19 reshaped stimulant prescribing patterns in Ontario, highlighting increased ADHD diagnoses and concerns over treatment appropriateness.

11 Mar 2026

New review calls for biologically grounded approach to psychiatric diagnosis

A comprehensive invited review published today in Brain Medicine confronts one of the most persistent paradoxes in modern medicine: psychiatry remains the only major clinical discipline that diagnoses complex illness primarily through conversation and symptom checklists, while fields such as oncology and cardiology long ago embraced laboratory markers, imaging, and molecular profiling.

10 Mar 2026

Using a smartwatch to detect changes in brain health

Can smartphones or smartwatches help detect early signs of neurological or mental illness? Researchers at the University of Geneva (UNIGE) monitored a group of participants wearing connected devices, and used artificial intelligence to analyze data such as heart rate, physical activity, sleep and air pollution.

10 Mar 2026

Postbiotics may help treat PCOS by restoring microbiome balance

Emerging studies suggest postbiotics could aid PCOS management by restoring gut microbiome balance and enhancing insulin sensitivity and hormonal regulation.

10 Mar 2026

More kids are in ERs for tooth pain. Trump cuts and RFK Jr.’s anti-fluoride fight aren’t helping.

Eight-year-old Jonah woke up one May morning with a swollen face and a toothache. He refused the pain medication that his mom, Geneva Reynolds, tried to give him. He didn't sleep or eat and cried constantly.

10 Mar 2026

Sleep and diet emerge as key drivers of immunome variation

Immunome (immune cells and functions) variations are closely related to human health. Various exposures, including the external environment and personal lifestyles, are important factors affecting the immune system.

9 Mar 2026

Largest genetic study classifies 14 psychiatric disorders into five major groups

Although mental disorders have multifactorial causes, genetics can explain some of them, yet this field remains largely unexplored in terms of guiding diagnoses and treatments.

9 Mar 2026

Spring fatigue is a cultural rather than biological phenomenon

When the days start to get longer again, Dr Christine Blume's phone rings more often. That's because journalists want to ask the sleep researcher what spring fatigue is all about.

9 Mar 2026

Redefining the "aging brain" through diverse data

Age is more than just one number. While neuroscientists used to think of cognitive aging as a single trendline, they now realize that vast individual differences require a more predictive and personalized approach. As they uncover more factors that affect cognition over time, they are realizing that modeling the aging brain requires more diverse data than traditionally captured.

9 Mar 2026

Can aging bring improvement instead of decline? Long-term study says yes

A large longitudinal study of U.S. adults found that many older people improve in cognitive function or walking speed over time, challenging the idea that aging inevitably leads to decline. Positive beliefs about aging were associated with higher odds of improvement in both cognitive and physical health.

8 Mar 2026

Post amputation pain differs with movement and prosthetic type

Researchers at the University of Colorado Anschutz have identified a critical gap in how post-amputation pain is evaluated and treated.

6 Mar 2026

Buck Institute launches a new initiative to measure and extend human healthspan

The Buck Institute for Research on Aging today announced the launch of Healthspan Horizons, a new initiative designed to address one of the most urgent challenges in modern medicine: how to measure, understand, and extend healthspan-the years of life spent in good health.

6 Mar 2026