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.

How Long Should My Teenager Sleep For?

Could Humans Ever Hibernate?

Nutritional Effects on Sleep

Health Effects of Poor Sleep - Quantity and Quality

Ghrelin and Sleep

How Can Sleep Affect Men's Health?

Sleep and Hormones

Effects of Sleep Deprivation

Shift Work Sleep Disorder

Is Daytime Napping in Adults Good or Bad?

Causes of Nocturnal Awakenings

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Hypnotics and Sleep

How Can Mindfulness Meditation Improve Sleep?

What is Sleep?

What is Delayed Sleep Phase Disorder (DSPD)?

What is the Role of Melatonin in Sleep Regulation?

Sleep and Yoga

Management of Sleep Deprivation

Causes of Sleep Deprivation

What is the Circadian Rhythm?

What is Sleep Regression?

Types of Sleep Disorders

Sleep Deprivation - Inadequate Quantity of Sleep

A Guide to Managing Sleep Disorders

How Much Sleep do People Need?

Can too much sleep be dangerous?

Why Do We Sleep?

Spoon Test for Sleep Deprivation

Tips on Getting to Sleep

How to Catch up on Lost Sleep

The Health Risks of Oversleeping

The Importance of Having a Good Night’s Sleep

Sleep Onset Mechanics: Understanding the Transition from Wakefulness to Slumber

A Guide to Healthy Sleep Positions

Effect of Sleep on Your Emotions

How Does Sleep Affect Your Immunity?

What Does Polysomnography Involve?

How Does Pain Affect Your Sleep?

Promoting Sounder Sleep in Older Adults

Role of Sleep in Memory Consolidation

Why Do We Dream?

Circadian Rhythm Sleep Disorders

History of Sleep

Delayed Sleep Phase Disorder (DSPD) Management

How Long should my Child Sleep for?

Neuroscience of Sleep

Brain Activity During Sleep

Difference Between Nightmares and Night Terrors

REM Sleep Activity

Function of Sleep

Regulation of Sleep

Stimulants and Sleep

The DEC2 Gene and Sleep

Sleep Hygiene

Stages of Sleep

Does Your Alarm Sound Affect Your Mood?

Importance of Sleep

Latest Sleep News and Research

To avoid care disruptions, know when the clock runs out on your prior authorization

A woman with multiple sclerosis wanted to be able to walk up the stairs at home without losing her balance.

27 Feb 2026

Building an affordable toolkit for healthy aging

As people age, they experience a gradual decline in intrinsic capacity (IC), the combined physical and mental abilities that support independence and health. The World Health Organization recognizes IC as a central indicator of resilience in aging, yet no affordable, validated tool exists to measure it.

27 Feb 2026

Matching academic demands to teen biology

High school students often have trouble getting to bed at a reasonable time, which makes it difficult for them to start school early in the morning. This is because teenagers are biologically wired to fall asleep later than adults, with their biological clock shifting progressively later throughout adolescence. The result is that most teenagers don't get enough sleep on school days, and their sleep deficits increase as the week progresses.

26 Feb 2026

How physical strength and self-belief grow together in teens

Physical fitness and psychological resilience develop side by side during adolescence, a life stage that lays the foundation for adult health. Cardiorespiratory endurance, muscular strength, and agility are well-known predictors of cardiometabolic health, while self-efficacy, defined as the belief in one's ability to overcome challenges, shapes motivation, persistence, and coping strategies.

26 Feb 2026

Misdiagnosed Parkinson's patient regains life after NPH treatment

At age 66, Richard "Dick" Nash first suspected something might be wrong when he participated in a Dallas walk for juvenile diabetes in honor of his granddaughter.

26 Feb 2026

Lymphovenous anastomosis may be an effective treatment for Alzheimer's disease

A small but growing body of evidence suggests that a minimally invasive surgical procedure called lymphovenous anastomosis (LVA) might be an effective treatment for Alzheimer's disease (AD), according to a special article in the March issue of Plastic and Reconstructive Surgery, the official medical journal of the American Society of Plastic Surgeons (ASPS).

26 Feb 2026

Fiber intake may reduce heart disease risk in night shift workers

Research shows higher fiber consumption may lower coronary heart disease risk in night shift workers, suggesting dietary adjustments for better health.

26 Feb 2026

Telemedicine visits cost far less than in-person care

Telemedicine visits are five times less costly than in-person appointments for the most common conditions able to be treated by both forms of visits, new research from the Perelman School of Medicine at the University of Pennsylvania shows.

25 Feb 2026

Morning chronotype and exercise associated with reduced ALS risk

Being an early bird, also called a morning person, and being more physically active are associated with lower risks of amyotrophic lateral sclerosis (ALS), according to a preliminary study released February 25, 2026, that will be presented at the American Academy of Neurology's 78th Annual Meeting taking place April 18-22, 2026, in Chicago and online.

25 Feb 2026

Combining healthy lifestyle and GLP-1 therapy reduces heart risks in diabetes

Individuals living with type 2 diabetes (T2D) had a significantly lower risk of poor cardiovascular health when they used a GLP-1 receptor agonist (GLP-1 RA) in combination with adhering to healthy lifestyle habits, according to a new study led by researchers at Harvard T.H. Chan School of Public Health and the Department of Veterans Affairs Boston Healthcare System.

25 Feb 2026

Road traffic noise linked to immediate heart and blood vessel stress

A new study published in the journal Cardiovascular Research shows that a single night of road traffic noise, at levels that are typical of those living in a city, causes stress to the heart and blood vessels.

25 Feb 2026

Nearly 6 in 10 women in the U.S. may have cardiovascular disease in the next 25 years

Driven by rising rates in high blood pressure, nearly 6 in 10 women in the U.S. will have some type of cardiovascular disease (CVD) in the next 25 years, according to a new scientific statement published today in Circulation, the peer-reviewed, flagship journal of the American Heart Association, a global force changing the future of health for all.

25 Feb 2026

Untreated sleep apnea may cost the UK and US billions annually

Untreated obstructive sleep apnea may be costing the UK and US economies billions of pounds/dollars in lost productivity every year, with a considerable proportion of working age adults experiencing symptoms indicative of the breathing disorder, suggests an analysis published online in the journal Thorax.

24 Feb 2026

Chimpanzee urine confirms widespread alcohol consumption in the wild

Aleksey Maro knows far more than he cares to know about the urination habits of chimpanzees. But if you want to measure the alcohol intake of chimps in a Ugandan rain forest, where a breathalyzer is impractical, collecting urine for analysis is your only choice.

24 Feb 2026

Neuroticism may influence adolescents' well-being through sleep disruption and reduced mindfulness

Up to 75% of adolescents experience sleep-related problems, including insufficient duration and poor sleep quality.

24 Feb 2026

Standard doses of antidepressants during pregnancy appear to be safe, study suggests

Using a standard dose of antidepressants during pregnancy appears to be safe for the baby, suggests new research from the University of Oslo and Akershus University Hospital.

24 Feb 2026

The gender gap in early Lyme disease detection and signs

In a new Johns Hopkins Medicine study, researchers found that male and female patients with early Lyme disease present with different signs of the disease in the symptoms they report, their physical exams, and their laboratory test results.

23 Feb 2026

Oxytocin circuits mediate sleep loss-induced social memory deficits

Social memory-the ability to recognize familiar individuals and distinguish them from strangers-is fundamental to social cognition.

23 Feb 2026

Frontline healthcare workers experienced highest insomnia rates during and after pandemic

An analysis co-led by Josefa A. Antón Ruiz, a researcher from the Department of Health Psychology at the University of Alicante (UA), reveals that 43.5% of healthcare professionals experienced clinically significant symptoms of insomnia during and after the COVID-19 pandemic.

23 Feb 2026

New Orleans brings back the house call, sending nurses to visit newborns and moms

When Lisa Bonfield gave birth to daughter Adele in late November, she was thrust into the new world of parenting, and faced an onslaught of challenges and skills to learn: breastfeeding, diapering, sleep routines, colic, crying, and all the little warning signs that something could be wrong with the baby.

23 Feb 2026