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.

What is Sleep Regression?

How Does Sleep Affect Your Immunity?

REM Sleep Activity

Does Your Alarm Sound Affect Your Mood?

Stages of Sleep

Nutritional Effects on Sleep

Circadian Rhythm Sleep Disorders

Effects of Sleep Deprivation

Ghrelin and Sleep

What is Delayed Sleep Phase Disorder (DSPD)?

What Does Polysomnography Involve?

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Management of Sleep Deprivation

Could Humans Ever Hibernate?

The Health Risks of Oversleeping

How Long Should My Teenager Sleep For?

Role of Sleep in Memory Consolidation

Health Effects of Poor Sleep - Quantity and Quality

Neuroscience of Sleep

Types of Sleep Disorders

Sleep and Hormones

Tips on Getting to Sleep

Brain Activity During Sleep

The DEC2 Gene and Sleep

How Can Sleep Affect Men's Health?

What is Sleep?

Spoon Test for Sleep Deprivation

How to Catch up on Lost Sleep

How Does Pain Affect Your Sleep?

Why Do We Dream?

How Can Mindfulness Meditation Improve Sleep?

Causes of Sleep Deprivation

Hypnotics and Sleep

Sleep Deprivation - Inadequate Quantity of Sleep

Why Do We Sleep?

Function of Sleep

Difference Between Nightmares and Night Terrors

A Guide to Managing Sleep Disorders

Is Daytime Napping in Adults Good or Bad?

A Guide to Healthy Sleep Positions

The Importance of Having a Good Night’s Sleep

What is the Role of Melatonin in Sleep Regulation?

How Much Sleep do People Need?

Importance of Sleep

Sleep Onset Mechanics: Understanding the Transition from Wakefulness to Slumber

Sleep and Yoga

Stimulants and Sleep

Can too much sleep be dangerous?

History of Sleep

Sleep Hygiene

Effect of Sleep on Your Emotions

Shift Work Sleep Disorder

Delayed Sleep Phase Disorder (DSPD) Management

Promoting Sounder Sleep in Older Adults

How Long should my Child Sleep for?

What is the Circadian Rhythm?

Regulation of Sleep

Causes of Nocturnal Awakenings

Latest Sleep News and Research

Mount Sinai opens integrated clinical center for womens health

The Mount Sinai Health System is opening the Carolyn Rowan Center for Women's Health and Wellness, a transformative new model for women's health that brings together multidisciplinary clinical expertise, structured care pathways, and leading-edge research innovation to deliver more personalized, comprehensive care for women across the entire lifespan.

27 May 2026

EEG reveals how coffee may secretly lower sleep quality

Evening coffee has sparked controversy for years. Some people fall asleep without difficulty, while others toss and turn for half the night.

27 May 2026

Healthy hearts prior to pandemic reduced severe COVID-19 risk

Better heart health before the pandemic was linked to a lower risk of severe COVID-19 events, according to research published today in the Journal of the American Heart Association, an open-access, peer-reviewed journal of the American Heart Association.

27 May 2026

Women who sleep less may face more irregular menstrual cycles

A study on 42,759 menstrual cycles shows that sleep quality affects menstrual health, with implications for physiological stability and individual variability.

27 May 2026

Wearable devices may help detect menstrual health changes earlier

Digital health tools, including wearables, provide critical data on menstrual health, enhancing understanding of hormonal fluctuations and women's well-being.

27 May 2026

Study links fathers’ preconception stress to altered offspring development

Research from the University of Colorado Anschutz suggests that stress experienced by a father before conception may influence an offspring's growth by altering small molecular signals in sperm.

26 May 2026

Early multidisciplinary care speeds concussion recovery in children

Children recover significantly faster from concussion after receiving early, multidisciplinary care designed to treat persistent symptoms, according to a new study.

26 May 2026

Special yoga intervention helps cancer survivors manage psychological side effects

University of Rochester Medicine is in the spotlight at a national meeting for a new discovery in integrative oncology: A special yoga intervention, the study shows, goes a step further than other side-effect therapies to improve four domains of physical and psychological side effects that most patients experience, including lifting mood and easing anxiety.

26 May 2026

How heat-smart cities can protect outdoor recreation in a warming world

This review shows how rising humid heat threatens the health benefits of nature-based recreation in tropical cities. The authors call for heat-smart urban planning, targeted advisories, and inclusive strategies that keep outdoor activity safe, accessible, and beneficial.

26 May 2026

How screen time, stress, and nicotine trap young adults in poor sleep

Among the younger part of the population, sleep problems, anxiety, and depression are widespread and growing issues.

22 May 2026

Disrupted sleep rhythms may increase dementia risk through impaired waste clearance

Why are conditions such as chronic stress, depression, cardiovascular disease, fragmented sleep, and aging all associated with a higher risk of dementia? In a new review piece in Science, University of Rochester Medicine neuroscientist Maiken Nedergaard, MD, DMSc, proposes that many of these seemingly different conditions may converge on the same biological problem: disruption of a sleep-dependent brain rhythm that helps clear waste from the brain.

22 May 2026

Smartphone overdependence may signal higher alcohol and smoking risk in teens

Higher smartphone overdependence was significantly associated with greater odds of self-reported lifetime alcohol and tobacco use among more than 100,000 Korean adolescents. The study found graded dose-response patterns, with earlier initiation and heavier alcohol or smoking behaviors linked to a higher adjusted probability of high-risk smartphone overdependence.

21 May 2026

Researchers find no meaningful health impacts from wind energy turbines

A joint research paper involving work from the University of Pittsburgh has found that, despite some public concern, turbines used to produce wind energy are not responsible for any detectable adverse health outcomes.

21 May 2026

Machine learning lifestyle coaching helps reduce major depressive symptoms

More than 21% of U.S. adults experience depression, greatly impacting their quality of life. Many people with mild‑to‑moderate depression can improve their symptoms by adjusting daily habits like sleep, exercise, diet and social interaction, according to Jyoti Mishra, PhD, associate professor of psychiatry at University of California San Diego School of Medicine.

21 May 2026

Oral AD109 improves sleep apnea severity but tolerability remains a challenge

AD109, an investigational once-daily oral combination of aroxybutynin and atomoxetine, significantly improved airway obstruction and oxygenation in adults with mild-to-severe obstructive sleep apnea who could not use PAP therapy. However, symptom improvements did not clearly differ from placebo, and about one in five AD109 recipients discontinued treatment due to adverse events.

21 May 2026

Poor sleep may flag early Alzheimer’s risk in genetically vulnerable older women

Poorer subjective sleep quality was linked to worse visual memory and greater limbic tau burden in older women with higher genetic risk for Alzheimer’s disease. The findings suggest sleep complaints may help identify women at elevated risk for early AD-related brain and cognitive changes, but larger longitudinal studies are needed.

20 May 2026