A new study reveals how sleep duration impacts brain health, specifically relating to stroke and dementia risks.

Across many domains of life, consistency is considered beneficial, and sleep is no exception to this rule. Epidemiological evidence suggests that greater w

Statement of Significance Growing evidence suggests that individuals with long COVID report sleep disorders and insomnia; however, the literature is limite

Statement of Significance Growing evidence suggests that individuals with long COVID report sleep disorders and insomnia; however, the literature is limite

From a quantitative view, research into sleep health has traditionally been viewed from the lens of duration: How long does sleep need to optimize performa

AbstractStudy objectives. Adolescent brain maturation is characterized by profound structural changes to grey and white matter. While cross-sectional studi

When asked “How did you sleep last night?”, people generally remember how they felt after waking up and respond accordingly. Yet, if one had performed a po

AbstractStudy Objectives. To investigate if glucose homeostasis was impaired during recurrent periods of sleep restriction and recovery, and if the impairm

A team of Chinese researchers found that healthy and successful ageing is determined by sleep patterns.

A new study highlights how sleep regularity, more than duration, significantly influences mortality risks from various health conditions.

AbstractStudy Objectives. Idiopathic hypersomnia (IH) and narcolepsy type 2 (NT2) are rare hypersomnolence disorders with unknown pathophysiology. Recent e

Study highlights the association between sleep duration and proteomic fingerprints, finding that very short sleep is linked to proteins involved in inflammation and cell death that increase the risk o...

AbstractStudy Objectives. Research linking children’s sleep to cognitive outcomes is inconsistent and has largely focused on one aspect of sleep, such as d

The official peer-reviewed journal of the American Academy of Sleep Medicine.

A new large-scale study suggests that there may be an optimal range of nightly sleep linked to healthier aging outcomes. Researchers found that sleeping approximately between 6.4 and 7.8 hours per night is associated with more favorable long-term health indicators compared with sleeping significantly less or more than this range. According to the findings, insufficient sleep over time is well known to contribute to a variety of health risks, including metabolic issues, cognitive decline, and increased stress on multiple bodily systems. However, the study also highlights that excessive sleep may not be harmless either. Long sleep duration was associated with signs of accelerated aging across nearly every major organ system examined. The results suggest that both extremes of sleep duration could be markers or contributors to underlying physiological stress or health conditions. The researchers emphasize that sleep quality and consistency likely play an important role alongside duration. People who regularly fall within the identified “sweet spot” range tended to show more stable health markers over time. While the study does not claim that adjusting sleep alone can guarantee healthier aging, it reinforces the idea that balanced sleep habits are an important component of overall wellness. Experts often recommend maintaining a consistent sleep schedule, limiting disruptions such as late-night screen exposure, and creating a sleep-conducive environment. The findings contribute to a growing body of evidence that both too little and too much sleep may be associated with negative health outcomes, and that moderation in sleep duration could support healthier aging trajectories.

An analysis of biological clocks across the human body suggests that both insufficient and excessive sleep may accelerate aging in the brain, heart, lungs, and immune system. ...

A study was conducted to determine if there is a relationship between average sleep duration and risk for cardiovascular disease.