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 Child Sleep for?

Health Effects of Poor Sleep - Quantity and Quality

How Does Sleep Affect Your Immunity?

Causes of Nocturnal Awakenings

Causes of Sleep Deprivation

The DEC2 Gene and Sleep

Promoting Sounder Sleep in Older Adults

Effect of Sleep on Your Emotions

Role of Sleep in Memory Consolidation

How to Catch up on Lost Sleep

What is Sleep Regression?

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Nutritional Effects on Sleep

Effects of Sleep Deprivation

REM Sleep Activity

A Guide to Managing Sleep Disorders

Ghrelin and Sleep

Hypnotics and Sleep

Sleep Hygiene

Sleep and Yoga

Why Do We Sleep?

Spoon Test for Sleep Deprivation

Stages of Sleep

Could Humans Ever Hibernate?

Delayed Sleep Phase Disorder (DSPD) Management

How Can Mindfulness Meditation Improve Sleep?

Sleep Onset Mechanics: Understanding the Transition from Wakefulness to Slumber

History of Sleep

Shift Work Sleep Disorder

Difference Between Nightmares and Night Terrors

What is the Circadian Rhythm?

The Health Risks of Oversleeping

Stimulants and Sleep

What is Sleep?

Sleep Deprivation - Inadequate Quantity of Sleep

How Can Sleep Affect Men's Health?

What Does Polysomnography Involve?

How Much Sleep do People Need?

What is the Role of Melatonin in Sleep Regulation?

Does Your Alarm Sound Affect Your Mood?

Can too much sleep be dangerous?

Types of Sleep Disorders

Brain Activity During Sleep

The Importance of Having a Good Night’s Sleep

Why Do We Dream?

Tips on Getting to Sleep

Is Daytime Napping in Adults Good or Bad?

Sleep and Hormones

A Guide to Healthy Sleep Positions

How Does Pain Affect Your Sleep?

Neuroscience of Sleep

Management of Sleep Deprivation

Function of Sleep

Importance of Sleep

Regulation of Sleep

Circadian Rhythm Sleep Disorders

How Long Should My Teenager Sleep For?

What is Delayed Sleep Phase Disorder (DSPD)?

Latest Sleep News and Research

Hormone replacement therapy shows no rise in overall mortality

Menopausal hormone therapy (commonly known as hormone replacement therapy or HRT) is not associated with an increased risk of death, finds a Danish study of over 800,000 women published by The BMJ today.

18 Feb 2026

Lifestyle medicine practice linked to lower clinician burnout

Healthcare professionals report that treating patients with lifestyle medicine helps to reduce burnout by increasing professional satisfaction, meaning, and a sense of effectiveness at work, according to a new study published in BMC Health Services Research.

18 Feb 2026

Can mobile apps change how we eat?

Evaluating digital tools for sustainable eating, the review highlights initial positive impacts but stresses the importance of long-term effectiveness research.

18 Feb 2026

Open-source Epicurrents library brings clinical neurophysiology recordings to web browsers

Clinical neurophysiology examinations include electroencephalography, sleep and vigilance studies, as well as nerve conduction recordings.

17 Feb 2026

New study uncovers link between pediatric OSA and higher risk of viral infections

A five-year study has revealed that children with sleep apnea are twice as likely to contract the flu or COVID-19, regardless of their age or weight.

17 Feb 2026

Musicians experience higher rates of tinnitus, hearing loss, and hyperacusis than non-musicians

A new systematic review and meta-analysis published in Otolaryngology–Head and Neck Surgery, the official journal of the American Academy of Otolaryngology–Head and Neck Surgery Foundation (AAO-HNSF), reveals that musicians face substantially higher rates of tinnitus, hearing loss, and hyperacusis compared to non-musicians.

17 Feb 2026

Sleep loss triggers brain fluid pulses that impair attention, study finds

Sleep deprivation causes attentional lapses that coincide with coordinated changes in brain activity, pupil diameter, blood flow, and cerebrospinal fluid dynamics. These findings suggest attention failures reflect a transient brain–body state linked to sleep pressure rather than isolated neural errors.

16 Feb 2026

Relationship confidence drives personal health improvements for couples

When couples attend relationship counseling, it benefits not only their partnership but also their individual well-being.

13 Feb 2026

Aligning overnight fasting with sleep improves heart health

A new Northwestern Medicine study has personalized overnight fasting by aligning it with individuals' circadian sleep-wake rhythm - an important regulator of cardiovascular and metabolic function - without changing their caloric intake.

12 Feb 2026

Addictive screen habits harm early adolescent mental health

New research following US adolescents ages 11–12 shows that problematic use of mobile phones, social media, and video games was associated with higher risks of mental health problems, sleep disturbance, and suicidal behaviors one year later.

12 Feb 2026

Can hot baths lower high blood pressure?

A review highlights hot water immersion's potential in lowering blood pressure, emphasizing it as an adjunct therapy alongside traditional treatments.

12 Feb 2026

Airborne toxin exposure drives unique biological pattern of chronic rhinosinusitis

Researchers at the University of California San Diego and the Veterans Affairs San Diego Healthcare System have identified a distinct biological pattern of chronic rhinosinusitis (CRS), a chronic respiratory illness frequently associated with exposure to airborne toxins, such as wildfire smoke and military burn pits.

11 Feb 2026

Simple wrist-worn device enables early detection of depression relapse

Could a smart watch act as an early‑warning system for depression relapse? New research from McMaster University suggests that disruptions in a person's sleep and daily activity routine, as detected through a simple wrist-worn device, can signal when there is increased risk of relapsing into major depression.

11 Feb 2026

Night-time traffic noise may affect metabolic health

A new study has found that nighttime noise exposure is associated with changes in blood cholesterol and lipid-related metabolites in adults, which are known risk factors for cardiometabolic diseases.

11 Feb 2026

South Asian adults in the U.S. have higher prevalence of risk factors for heart disease

South Asian adults in the U.S. report doing many of the right things for heart health, yet they show significantly higher rates of prediabetes, diabetes and hypertension than white and Chinese adults, and higher than or roughly similar rates to Black and Hispanic patients, according to a new study led by Northwestern Medicine.

11 Feb 2026