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.

What is Sleep?

Types of Sleep Disorders

How Can Mindfulness Meditation Improve Sleep?

Promoting Sounder Sleep in Older Adults

Sleep Deprivation - Inadequate Quantity of Sleep

Causes of Sleep Deprivation

Effect of Sleep on Your Emotions

How Long Should My Teenager Sleep For?

Management of Sleep Deprivation

REM Sleep Activity

Brain Activity During Sleep

Stages of Sleep

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Regulation of Sleep

Function of Sleep

Nutritional Effects on Sleep

Effects of Sleep Deprivation

Neuroscience of Sleep

Stimulants and Sleep

Hypnotics and Sleep

Shift Work Sleep Disorder

What is Delayed Sleep Phase Disorder (DSPD)?

Delayed Sleep Phase Disorder (DSPD) Management

What is the Circadian Rhythm?

Circadian Rhythm Sleep Disorders

What Does Polysomnography Involve?

How Long should my Child Sleep for?

Health Effects of Poor Sleep - Quantity and Quality

How to Catch up on Lost Sleep

Why Do We Sleep?

Sleep Hygiene

Ghrelin and Sleep

Spoon Test for Sleep Deprivation

Can too much sleep be dangerous?

Causes of Nocturnal Awakenings

History of Sleep

Is Daytime Napping in Adults Good or Bad?

Tips on Getting to Sleep

The DEC2 Gene and Sleep

Importance of Sleep

Difference Between Nightmares and Night Terrors

How Does Sleep Affect Your Immunity?

How Does Pain Affect Your Sleep?

Why Do We Dream?

The Health Risks of Oversleeping

A Guide to Managing Sleep Disorders

The Importance of Having a Good Night’s Sleep

Sleep and Yoga

A Guide to Healthy Sleep Positions

How Can Sleep Affect Men's Health?

How Much Sleep do People Need?

Sleep and Hormones

Role of Sleep in Memory Consolidation

What is Sleep Regression?

Does Your Alarm Sound Affect Your Mood?

Could Humans Ever Hibernate?

Sleep Onset Mechanics: Understanding the Transition from Wakefulness to Slumber

What is the Role of Melatonin in Sleep Regulation?

Latest Sleep News and Research

Disrupted body clocks raise risk of early death, study finds

A large cohort study from China and the U.S. shows that Circadian Syndrome (CircS)—a cluster of metabolic and behavioral disruptions—is linked to higher all-cause and cause-specific mortality. The risk increases with the number of CircS components, especially among adults aged 40–60.

29 Apr 2025

Synthetic tau protein reveals key insights into protein misfolding and fibril formation

Scientists at Northwestern University and University of California, Santa Barbara have created the first synthetic fragment of tau protein that acts like a prion.

29 Apr 2025

Obesity changes how the gut responds to plant compounds, researchers report

Researchers found that the impact of polyphenols rutin and genistein on the human fecal metabolome varies significantly by body mass index (BMI). Lower BMI individuals showed more diverse metabolic responses, revealing how gut health and obesity could shape polyphenol metabolism.

28 Apr 2025

Researchers discover dual role of sleep in memory formation

Memory formation, storage, and retrieval are fundamental processes that define who we are and how we interact with the world.

28 Apr 2025

Why your heart works harder at night after a few drinks, according to new research

Researchers at Ludwig Maximilian University of Munich found that moderate alcohol consumption transiently raises nocturnal resting heart rate without altering objective sleep stages. However, it worsens subjective sleep quality, highlighting subtle cardiovascular stress even at low alcohol doses.

28 Apr 2025

MASLD in children linked to increased mortality and chronic complications

Researchers from University of California San Diego have found that children diagnosed with metabolic dysfunction-associated steatotic liver disease (MASLD) are at significantly increased risk of premature death and serious long-term health complications.

28 Apr 2025

Think only obese people get sleep apnea? Think again, says largest study yet

Researchers assess the prevalence of obesity and obstructive sleep apnea while also considering the role of age and sex in this relationship.

28 Apr 2025

Ultra-processed foods make up nearly half of US grocery purchases, raising public health concerns

A 2025 study of nearly 60,000 US households found that almost half of grocery purchases were ultra-processed foods (UPFs), with major disparities based on income, education, and race. Non-Hispanic white households led in UPF purchases, especially in beverages, reversing earlier trends.

28 Apr 2025

Want better FIFO relationships? Prioritize communication, researchers advise

Researchers from Central Queensland University found that fly-in, fly-out (FIFO) workers experience lower relationship satisfaction when away on shift, primarily due to reduced communication with their partners. Ensuring consistent communication mitigates these negative effects.

27 Apr 2025

Study finds early signs of dry eye in most young adults

Researchers at Aston University have called for more advice to be given to young people about preventing dry eye disease, after a study carried out in conjunction with Oslo University Hospital and Sørlandet Hospital Trust in Norway found that 90% of participants had at least one sign of the condition in their eyes.

25 Apr 2025

Exploring the science behind blank minds and conscious gaps

Mind blanking is a common experience with a wide variety of definitions ranging from feeling "drowsy" to "a complete absence of conscious awareness."

24 Apr 2025

Urgent action needed to protect children from extreme heat in schools and child care settings

As Canadians face increasingly intense and frequent heat waves, health, education and legal experts are sounding the alarm on a growing crisis: extreme heat in schools and child care settings due to the escalating effects of climate change.

24 Apr 2025

Researchers uncover link between heart attack severity and circadian rhythm

The molecular mechanism behind why heart attacks can vary in severity depending on the time of day has been uncovered by researchers at UTHealth Houston, potentially paving the way for innovative treatments that align with the natural circadian rhythm.

23 Apr 2025

Move more, think sharper: How physical activity boosts brain health in aging

A brisk walk, a splash of water aerobics, or even a light jog around the block – if your heart rate goes up then so too will your brain health according to new research from the University of South Australia.

23 Apr 2025

UCLA launches trial of wearable ADHD therapy for children exposed to alcohol in the womb

Researchers at UCLA Health are launching the first clinical trial to test whether a wearable device that delivers gentle nerve stimulation during sleep could ease ADHD symptoms in children with prenatal alcohol exposure.

22 Apr 2025

Children’s mattresses expose sleepers to hidden chemical risks, study finds

A new study tested 16 children’s mattresses and found widespread contamination with harmful semivolatile organic compounds (SVOCs) like plasticizers and flame retardants. These chemicals can migrate into the sleeping environment, increasing children's risk of allergic and neurobehavioral effects.

22 Apr 2025

Longer sleep and earlier bedtimes linked to better brain function in adolescents

Adolescents who sleep for longer – and from an earlier bedtime – than their peers tend to have improved brain function and perform better at cognitive tests, researchers from the UK and China have shown.

22 Apr 2025

Only 13% of French adults have optimal heart health, study finds

Researchers assessed the Life’s Essential 8 cardiovascular health (CVH) scores in over 190,000 French adults, revealing that only 13% had optimal CVH. Higher scores were associated with being younger, female, well-educated, and having healthier lifestyle factors.

21 Apr 2025

Millions in the US live without local air quality monitoring

In 2024, more than 50 million people in the United States lived in counties with no air-quality monitoring, according to a new study from researchers in the Penn State College of Health and Human Development.

21 Apr 2025

Machine learning helps decode exercise motivation and behavior

Sticking to an exercise routine is a challenge many people face. But a University of Mississippi research team is using machine learning to uncover what keeps individuals committed to their workouts.

17 Apr 2025