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.

Importance of Sleep

How Long Should My Teenager Sleep For?

Function of Sleep

How Can Mindfulness Meditation Improve Sleep?

Regulation of Sleep

How Much Sleep do People Need?

Effects of Sleep Deprivation

Why Do We Sleep?

The DEC2 Gene and Sleep

Delayed Sleep Phase Disorder (DSPD) Management

Sleep and Yoga

See more featured articles »

Sleep and Hormones

A Guide to Managing Sleep Disorders

How Does Pain Affect Your Sleep?

Stages of Sleep

History of Sleep

What is the Role of Melatonin in Sleep Regulation?

Health Effects of Poor Sleep - Quantity and Quality

Can too much sleep be dangerous?

REM Sleep Activity

What is Sleep?

Difference Between Nightmares and Night Terrors

Shift Work Sleep Disorder

Types of Sleep Disorders

A Guide to Healthy Sleep Positions

Why Do We Dream?

How Can Sleep Affect Men's Health?

How Does Sleep Affect Your Immunity?

Brain Activity During Sleep

Effect of Sleep on Your Emotions

Promoting Sounder Sleep in Older Adults

Role of Sleep in Memory Consolidation

Circadian Rhythm Sleep Disorders

Causes of Sleep Deprivation

Ghrelin and Sleep

Management of Sleep Deprivation

Sleep Deprivation - Inadequate Quantity of Sleep

Nutritional Effects on Sleep

Hypnotics and Sleep

Sleep Onset Mechanics: Understanding the Transition from Wakefulness to Slumber

Sleep Hygiene

What Does Polysomnography Involve?

Stimulants and Sleep

The Importance of Having a Good Night’s Sleep

What is Sleep Regression?

Causes of Nocturnal Awakenings

What is Delayed Sleep Phase Disorder (DSPD)?

Tips on Getting to Sleep

How Long should my Child Sleep for?

Does Your Alarm Sound Affect Your Mood?

Could Humans Ever Hibernate?

Neuroscience of Sleep

How to Catch up on Lost Sleep

Spoon Test for Sleep Deprivation

What is the Circadian Rhythm?

The Health Risks of Oversleeping

Is Daytime Napping in Adults Good or Bad?

Latest Sleep News and Research

Some caffeinated drinks are linked to poorer memory

A study on caffeine's impact reveals product-specific effects on anxiety, memory, and stress among university students, highlighting mental health implications.

28 Jul 2026

Scientists uncover hidden brain energy dynamics during REM sleep

Our brain demands a lot of energy compared to our other organs. However, it can also make do when energy supplies are sparse, flexibly performing information processing using what is available.

27 Jul 2026

Blood tests improve Alzheimer's detection in Down syndrome patients

New blood tests that detect early changes associated with Alzheimer's disease are making diagnosis easier and accessible to more patients, since they are less invasive than the brain scans or spinal taps typically used for a definitive diagnosis.

27 Jul 2026

Three key brain regions interact during sleep to support memory formation

Researchers at Kennedy Krieger Institute and Johns Hopkins Medicine have discovered that memory consolidation during sleep depends on coordinated activity among three brain regions and disruptions to this activity can impair memory performance.

27 Jul 2026

New CHEST guideline outlines sleep apnea management during pregnancy

The American College of Chest Physicians (CHEST) recently released a new clinical guideline on obstructive sleep apnea (OSA) in pregnancy.

27 Jul 2026

New poll shows young adults lack practical healthcare management skills

Many young adults may be entering adulthood without the practical skills needed to manage their own healthcare, suggests a new national poll.

27 Jul 2026

Prototype smart ring tracks multiple sweat biomarkers

The CHARM smart ring enables continuous monitoring of biochemical markers in sweat, paving the way for advanced metabolic health tracking and diabetes support.

27 Jul 2026

Time-restricted eating may help lower dementia risk in older women

Results from a small clinical trial suggest it may be possible to reduce your risk of dementia by eating during fewer hours of the day.

26 Jul 2026

Individualized treatment speeds recovery for babies with opioid withdrawal

A major new study shows that individualized treatment for babies born with opioid withdrawal can speed recovery and reduce time spent in the hospital.

24 Jul 2026

Higher neuroticism may curb strenuous exercise, genetic analysis suggests

Researchers used a UK survey and genetic data to examine whether higher neuroticism is associated with lower exercise engagement. Under the study’s Mendelian randomization assumptions, higher neuroticism was estimated to reduce participation in moderate and vigorous physical activity, while conscientiousness may lessen this effect.

23 Jul 2026

Study reveals high prevalence of post-pandemic fatigue and sleep disturbances

Disrupted sleep and anxiety may be an ongoing issue for many people after the pandemic, whether due to COVID-19 directly or to the stress and anxiety caused by the global pandemic, and may contribute to the fatigue commonly reported by people with Post-COVID-19 Syndrome (PCS, or 'long COVID').

23 Jul 2026

Time zone changes disrupt vital gut bacteria during travel

A dream holiday, an exotic destination, a long-haul flight, and finally some well-deserved rest. The problem is that many travelers arrive at their destination only to spend the first days of their vacation struggling with fatigue, sleep disturbances, low energy levels, and digestive issues.

23 Jul 2026

Study finds greater social jetlag linked to a later eating pattern

In a 14-day study of 101 healthy UK adults, greater social jetlag was associated with a later distribution of energy intake, particularly greater late-evening intake among women. The effects were modest, varied by sex and day type, and did not establish whether total daily energy intake differed between groups.

23 Jul 2026

SuperAgers retain exceptional memory through mechanisms beyond genetics

Many people assume that some memory decline is an inevitable consequence of getting older. But a select group of older adults, known as SuperAgers, reach their 80s and 90s while retaining memory performance as good as or better than people in their 50s and 60s.

22 Jul 2026

Fecal microbe capsules show promise in treating chronic insomnia

In a randomized clinical trial published in the Journal of Internal Medicine, ingesting capsules containing fecal microbes from healthy donors helped treat symptoms of insomnia.

22 Jul 2026

New study uses sleep monitoring and AI to detect Alzheimer's

Researchers from Universidad Carlos III de Madrid (UC3M) and Hospital Universitario Severo Ochoa in Leganés, part of the public health network of the Comunidad de Madrid, have developed a methodology that uses artificial intelligence (AI) to analyze brain electrical activity during sleep and facilitate the early diagnosis of Alzheimer's.

22 Jul 2026

Understanding the role of cerebral venous flow in idiopathic intracranial hypertension

Idiopathic intracranial hypertension (IIH) is a rare and poorly understood neurological disorder that affects 1 to 20 people per 100,000-most often women of childbearing age.

22 Jul 2026

Moderate coffee intake may support heart health, AHA says

The American Heart Association finds that habitual coffee consumption is associated with lower risks of several cardiovascular outcomes, although most evidence comes from observational studies. Moderate intake is generally safe for most adults, while energy drinks and individual caffeine sensitivity may increase cardiovascular concerns.

21 Jul 2026

Experts urge focus on prevention to tackle global heart failure

Heart failure already affects more than 60 million people worldwide and is one of the leading causes of hospitalization among people over the age of 65.

21 Jul 2026

Childhood unpredictability linked to higher mental health risks

Children who grow up in unpredictable environments may face elevated risks for depression, anxiety, sleep disorders and other mental health challenges, according to a new study by researchers at the University of California, Irvine, Chapman University and Rady Children's Hospital Orange County, formerly called Children's Hospital of Orange County.

21 Jul 2026