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.

History of Sleep

How Does Pain Affect Your Sleep?

Health Effects of Poor Sleep - Quantity and Quality

Causes of Nocturnal Awakenings

The Importance of Having a Good Night’s Sleep

What is the Role of Melatonin in Sleep Regulation?

The DEC2 Gene and Sleep

A Guide to Managing Sleep Disorders

The Health Risks of Oversleeping

How Long should my Child Sleep for?

Regulation of Sleep

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Can too much sleep be dangerous?

Stages of Sleep

Could Humans Ever Hibernate?

Is Daytime Napping in Adults Good or Bad?

Sleep and Hormones

What is the Circadian Rhythm?

What Does Polysomnography Involve?

Effects of Sleep Deprivation

Shift Work Sleep Disorder

Nutritional Effects on Sleep

How Long Should My Teenager Sleep For?

Brain Activity During Sleep

Importance of Sleep

What is Sleep Regression?

Causes of Sleep Deprivation

Delayed Sleep Phase Disorder (DSPD) Management

What is Delayed Sleep Phase Disorder (DSPD)?

Difference Between Nightmares and Night Terrors

How Can Sleep Affect Men's Health?

Function of Sleep

Sleep Onset Mechanics: Understanding the Transition from Wakefulness to Slumber

Does Your Alarm Sound Affect Your Mood?

Sleep and Yoga

A Guide to Healthy Sleep Positions

Tips on Getting to Sleep

REM Sleep Activity

Stimulants and Sleep

Spoon Test for Sleep Deprivation

Why Do We Sleep?

Why Do We Dream?

Neuroscience of Sleep

Circadian Rhythm Sleep Disorders

Ghrelin and Sleep

How Does Sleep Affect Your Immunity?

Promoting Sounder Sleep in Older Adults

How Can Mindfulness Meditation Improve Sleep?

Sleep Hygiene

What is Sleep?

How Much Sleep do People Need?

Effect of Sleep on Your Emotions

Hypnotics and Sleep

Types of Sleep Disorders

Role of Sleep in Memory Consolidation

How to Catch up on Lost Sleep

Sleep Deprivation - Inadequate Quantity of Sleep

Management of Sleep Deprivation

Latest Sleep News and Research

Nearly half of adults now live with heart disease as obesity and diabetes surge

The 2026 American Heart Association Heart Disease and Stroke Statistics report shows that nearly half of adults are living with cardiovascular disease, with cardiometabolic risk factors projected to rise substantially by 2050. Despite progress in smoking reduction and cholesterol control, worsening obesity, diabetes, hypertension, sleep health, and persistent inequities threaten future cardiovascular health.

22 Jan 2026

Menopausal hormone therapy linked to greater weight loss with tirzepatide

A new study led by Mayo Clinic found that postmenopausal women receiving menopausal hormone therapy lost 35% more weight while taking tirzepatide, a Food and Drug Administration-approved drug for the treatment of overweight and obesity.

22 Jan 2026

Short naps refresh the brain for better learning

Even a short afternoon nap can help the brain recover and improve its ability to learn. In a study published on January 22, 2026, in the journal NeuroImage, researchers at the Medical Center - University of Freiburg, Geneva University Hospitals (HUG) and University of Geneva, show that even a nap is enough to reorganize connections between nerve cells so that new information can be stored more effectively.

22 Jan 2026

Lifelong health: The Northern Finland Birth Cohort 1966 enters a new era of aging research

One of the world’s most extensive birth cohorts is now entering later adulthood. At the University of Oulu in Finland, the Northern Finland Birth Cohort 1966 (NFBC1966) is launching a major new follow-up combining decades of biological, social, and environmental data with modern digital health tools to examine how lifelong exposures and the genome shape health and aging.

22 Jan 2026

ŌURA and NUS launch joint lab to advance personalized preventive health

ŌURA, maker of the most scientifically validated smart ring, Oura Ring, and the Centre for Sleep and Cognition (CSC) at the Yong Loo Lin School of Medicine, National University of Singapore (NUS Medicine), today announced the opening of the Oura–NUS Joint Lab, a new research entity dedicated to advancing personalized preventive health.

21 Jan 2026

The neuroscience of motivation-driven memory retention

Researchers from the Yong Loo Lin School of Medicine, National University of Singapore (NUS Medicine), and Duke University have proposed a neuroscience framework explaining how different types of motivation fundamentally reshape what and how the brain remembers.

21 Jan 2026

Tracing the decline in American heart disease mortality

Following a five-year upward trend likely impacted by the COVID pandemic, the number of heart disease and stroke deaths has declined, yet, heart disease and stroke still kill more people in the U.S. each year than any other cause, according to data reported in the 2026 Heart Disease and Stroke Statistics: A Report of U.S. and Global Data From the American Heart Association.

21 Jan 2026

Mouse study reveals social hierarchy influences sleep quality during isolation

Researchers tested what factors improve or worsen the quality of sleep in mice. A team including researchers from the University of Tokyo placed mice in two environments, one where they could see and sense other mice without physical contact, and one in complete isolation.

21 Jan 2026

Rhythmic carbon dioxide exposure may enhance brain waste clearance mechanisms

Abnormal clumps of proteins like α-synuclein, amyloid beta and tau are associated with neurodegenerative conditions like Parkinson's and Alzheimer's disease, but a waste removal mechanism called the glymphatic pathway can clear these proteins and other metabolic byproducts from the brain.

20 Jan 2026

Insulin anxiety and workplace barriers complicate gestational diabetes care

Insulin use in gestational diabetes presents challenges; education and support are key to overcoming fears and ensuring effective self-management for mothers.

20 Jan 2026

Teen girls who play organized sports show lower breast cancer risk biomarkers

This cross-sectional study of 191 adolescent girls found that ≥2 hours of organized recreational physical activity in the past week was associated with lower breast percent water content and reduced oxidative stress. These biomarkers are linked to breast cancer risk, although causality and long-term outcomes cannot be inferred.

19 Jan 2026

Students who game the most show lower diet quality and higher BMI, study finds

A national study of Australian undergraduates suggests that spending more than 10 hours a week gaming is associated with poorer diet quality, higher body weight, and disrupted sleep, highlighting the need for healthier gaming habits rather than less gaming altogether.

18 Jan 2026

Ashwagandha aids recovery without blunting training stress in athletes

Six weeks of Ashwagandha root extract supplementation in semi-professional team-sport athletes was associated with sex-specific effects during pre-season training. Females showed improved perceived recovery with stable cortisol, while males demonstrated gains in lower-body power with stable cortisone levels.

18 Jan 2026