Understanding Sleep Deprivation Sleep deprivation is when a person doesn’t get enough sleep. This can be a short-term issue, affecting one or a few nights, or it can be a chronic concern that lasts weeks or even months. Sleep deprivation can happen for countless reasons, many of them harmless, but it’s also a key symptom of certain health conditions. Sleep is something that everyone needs, and most people need a similar amount, depending on their age. That amount also change

"Why am I still tired after 8 hours of sleep?" The short answer is that sleep duration doesn’t necessarily correspond with sleep quality. Keep on reading to understand the factors behind sleep that are much more complicated than at first glance, although keep in mind that this isn’t a comprehensive list. Importance of sleep Many important processes occur during sleep. A primary function of sleep is the consolidation of learning and memory; essentially, giving the brain time t

Woman sleeping, retrieved from: https://friendtex.com/best-cooling-pajamas/ Sleep Apnea Graphic Illustration, Retrieved from: https://www.salemhealth.org/you-matter/post/the-two-main-types-of-sleep-apnea-and-how-to-treat-them Among the United States population, it is estimated that 50-70 million U.S. adults have some sort of chronic sleep disorder (most notably Insomnia, Sleep Apnea, Restless Legs Syndrome, and Narcolepsy), with around 84 million not getting uninterrupted sle

The body’s timekeeping system Our bodies have an internal timekeeping system referred to as the circadian clock . It runs on roughly a 24‑hour cycle and helps coordinate almost everything we do: when we feel sleepy or alert, how we process food, how our hormones rise and fall, and even when our cells repair damage. At the centre of this system is a small region in the brain that responds to light and acts as a master clock. But over the past decade (or more) scientists discov

Image Credit: https://cpap.community/ What Is a CPAP/BiPAP Titration Study? A CPAP or BiPAP titration study is an overnight sleep study designed to figure out the optimal air pressure necessary to keep the airway open during sleep. It is often performed after a diagnosis of sleep apnea and helps tailor treatment to individual differences. Why Titration Matters While CPAP and BiPAP machines both deliver pressurized air, the correct pressure level is key. Too little pressure m

Fatal Familial Insomnia is a rare, fatal, autosomal dominant neurodegenerative prion disease. FFI is caused by mutation in PRNP gene, causing misfolded proteins (prions) in the brain, particularly in thalamus, where sleep-wake cycle is controlled.

Photo by Brandon Cormier on Unsplash We spend, on average, around eight hours a day asleep, an essential biological process that plays a fundamental role in maintaining physical and cognitive health. Even a single night of inadequate sleep can noticeably impair daily functioning, leading to reduced concentration, lethargy, and mood changes. When sleep disturbances persist over time, however, their effects extend far beyond transient fatigue, contributing to long-term impairm

Note: There are a few types of sleep apnea with obstructive sleep apnea being the most common, which is the focus of this piece. Atrial fibrillation is the most common arrhythmia, or irregular heart rhythm, in the world, affecting around 5 million people just in the United States. A diagnosis of atrial fibrillation can have many downstream effects; long-term fatigue, increased risk for stroke, and overall increased risk of death. In modern days, it is a manageable condition a

Understanding the Link Between Sleep and Hormones Sleep is a biological process that involves an active state of unconsciousness of the body where the brain is relatively in a state of rest and reacts primarily to internal stimuli 1 Sleep is important to a number of brain functions, which also includes how nerve cells communicate with each other. Your brain and body usually stay active while you sleep. Recent findings suggest that sleep plays a housekeeping role that removes

Did you know that every night, while you sleep, your body is open for business, running its own repair shop—mending tissues, calming inflammation, and filing away memories. Sleep isn’t just rest; it’s medicine your body prescribes daily. The Science of Sleep and Healing Sleep is a dynamic biological process, not simply a pause in activity. During deep stages of non‑REM sleep, growth hormone surges, fueling the repair of muscles, tissues, and even blood vessels. This nightly

So here we are again; it's past midnight, your mind is racing because you have some client emails to respond to, you're worried about tomorrow's deadlines, or you just can't fall asleep. A partially consumed cup of coffee, an open laptop, and the dim glow of your phone are all around you like familiar friends. You're browsing Instagram for "healthy bedtime routines," "sleep hacks," or guided meditations, all of which promise relaxation, restful sleep, and possibly even energy

by Stephen Beesley, PhD During my teens and early twenties, I became progressively aware that I was waking up more fatigued than when I initially went to sleep. It would take me the majority of the first waking hour to finally feel 'awake'. Having completed my graduate studies in circadian biology, I considered myself relatively well educated on matters concerning sleep, yet I was ignorant of sleep apnea and its impact on day-to-day life. It wasn't until my mid-30s and after

Introduction: When Sleep Takes Over “Just wake up.” It sounds simple. For most people, sleep is something we enter and exit every day without thinking. But for individuals with Kleine–Levin Syndrome (KLS), waking up is not always possible. Sleep becomes an overpowering neurological state, one that can consume weeks, distort reality, and erase time. Often referred to as Sleeping Beauty Syndrome, KLS is a rare neurological disorder that disrupts the brain’s ability to regulat

Image Credit: Shutterstock What is the Epworth Sleepiness Scale (ESS)? The Epworth Sleepiness Scale (ESS) is a short questionnaire that estimates how likely someone is to fall asleep during daily activities. It can indicate daytime sleepiness and help healthcare providers diagnose conditions like sleep apnea, insomnia, or other sleep-related issues. It is also simple, only taking a few minutes and not needing any preparation. Everyday Scenarios the ESS Can Look At Instead of

Introduction We all live in hectic times and its natural to feel tired after a long day's work. But if youre feeling tired all the time - like after a good night's sleep or minimal work, then maybe there's an underlying condition that people often overlook - iron deficiency. People brush off fatigue as stress or blame it on a bad sleep the previous night. But the cause is probably hidden deeper in your blood. Iron deficiency is a very common issue all over the world; and fati

In many high schools today, an underlying but persistent issue has been spreading through classrooms and hallways: chronic exhaustion. Students often mention late nights, heavy workloads, and restless sleep almost casually, as if constant fatigue has become an expected part of being a teenager. What once might have been an occasional lapse in rest now appears to be a daily reality for many. As reports from educators and healthcare professionals continue to highlight the rise

While melatonin is widely considered a benign over-the-counter sleep aid, a recent large observational study suggests that chronic use (≥12 months) may be associated with a significantly increased risk of incident heart failure, hospitalisation, and mortality in adults with insomnia. These findings—presented at the American Heart Association (AHA) Scientific Sessions 2025—raise important questions about the long-term cardiovascular safety of melatonin. Given the study’s obs

Sleep is a universal human experience, yet many people underestimate its importance. Understanding the science of sleep reveals how it supports memory, mood, metabolism, and overall health. This article explores the stages of sleep, common disruptors, and practical strategies to improve nightly rest. Sleep Architecture: How the Night Unfolds Sleep stages: Sleep cycles through non-REM (N1, N2, N3) and REM stages multiple times per night. N1: Light sleep as you drift from wakef

a person dressed in red, rushing by a wall of clocks; photo courtesy of Unsplash Daylight saving time begins in March and ends in November; learn how to protect your health and well-being despite the twice-yearly time change. What is daylight savings time? The first Sunday in November traditionally marks the end of daylight-saving time. In the United States, clocks are turned back one hour to standard time. This change results in a gain of an hour of daylight at the start o

Epidemiology of sleep Sleep is a periodic, reversible state of rest that is not easily interrupted by the outside world and is widespread in all multicellular animals, suggesting that it serves an important biological function. If sleep were not beneficial, natural selection would have eliminated it long ago. Its necessity is also reflected in the “homeostatic drive for sleep”: similar to hunger or thirst, the longer the absence of sleep, the stronger the urge to fall asleep.