{"id":6253,"date":"2025-10-05T13:00:06","date_gmt":"2025-10-05T07:30:06","guid":{"rendered":"https:\/\/ksrini.life\/29035f-co-nz\/journal\/?p=6253"},"modified":"2025-10-05T13:00:06","modified_gmt":"2025-10-05T07:30:06","slug":"what-is-circadian-rhythm","status":"publish","type":"post","link":"https:\/\/ksrini.life\/29035f-co-nz\/journal\/what-is-circadian-rhythm\/6253\/","title":{"rendered":"What Is Circadian Rhythm?"},"content":{"rendered":"<div id=\"block_f579133c334076473267aff2ba6e3ba8\" data-block-name=\"acf\/block-quotes\">\n<div class=\"blockquote-key-takeaways bg-primary-brighter p-3 pb-1 p-md-4 pb-md-2\">\n<div class=\"blockquote-key-takeaways_title font-weight-bold text-primary-dark font-size-xl font-size-md-h3 mx-1 mb-2 mb-md-3\">Key Takeaways<\/div>\n<div class=\"mx-2 mx-md-1 pr-1\">\n<ul class=\"blockquote-key-takeaways_list\">\n<li class=\"blockquote-key-takeaways_list-item\">Circadian rhythms are 24-hour cycles that help govern essential bodily functions\u2014especially the sleep-wake cycle\u2014by syncing internal processes with the day\u2013night cycle.<\/li>\n<li class=\"blockquote-key-takeaways_list-item\">Disruptions from factors like irregular schedules, travel, shift work, screen time, or underlying health issues can throw off your internal clock and negatively impact sleep and overall well-being.<\/li>\n<li class=\"blockquote-key-takeaways_list-item\">Maintaining a consistent sleep schedule and daily routine, along with strategies like timed light exposure and melatonin supplementation when needed, are the most effective ways to support a healthy circadian rhythm.<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"wp-block-group\">\n<div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>Have you ever wondered why taking a nap seems particularly appealing in the middle of the afternoon, why jet lag hits you harder when you travel eastward, or why your ideal bedtime is so different from your partner\u2019s? The answers to all of these questions involve circadian rhythms, the natural patterns that take place in your body over the course of each 24-hour cycle.<\/p>\n<p>Circadian rhythms affect many bodily processes, your mental state, and your behavior. Perhaps the most well-known circadian rhythm is the sleep-wake cycle, which determines how sleepy or alert you feel throughout the day and night. We cover how circadian rhythms work, particularly in connection with sleep, along with how to prevent and address disruptions to your circadian rhythms.<\/p>\n<h2 id=\"what-are-circadian-rhythms\" class=\"wp-block-heading mt-5 section-header\">What Is Circadian Rhythm?<\/h2>\n<p>Through millions of years, life has been shaped by the world\u2019s rhythmic shifts of night and day. Many living things\u2014including plants, animals, and humans\u2014have circadian rhythms, which are tailored to life on earth and the changes that occur as the planet rotates on its axis.<\/p>\n<p>Every 24 hours, predictable shifts in light and temperature take place. Circadian rhythms help living things\u00a0<span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"1\">respond to changes in their environment\u00a0<span id=\"source-1\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-right\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0Trusted Source<\/span><a id=\"source-card-close-1\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"1\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252180\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">StatPearls<\/span>View Source\u00a0<\/span><\/span><\/span>in ways that conserve energy, help them find food, and allow them to grow and heal.<\/p>\n<p>In humans, circadian rhythms serve\u00a0<span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"2\">many functions,\u00a0<span id=\"source-2\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-left\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0Trusted Source<\/span><a id=\"source-card-close-2\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"2\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252182\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">UpToDate<\/span><span class=\"source-description d-block font-size-md font-weight-normal line-height-md my-3\">More than 2 million healthcare providers around the world choose UpToDate to help make appropriate care decisions and drive better health outcomes. UpToDate delivers evidence-based clinical decision support that is clear, actionable, and rich with real-world insights.<\/span>View Source\u00a0<\/span><\/span><\/span>including helping regulate :<\/p>\n<ul>\n<li>Sleeping and waking<\/li>\n<li>Core body temperature<\/li>\n<li>The immune system<\/li>\n<li>Hormones<\/li>\n<li>Metabolism<\/li>\n<li>Cognitive function<\/li>\n<li>The body\u2019s reaction to stress<\/li>\n<\/ul>\n<h3 id=\"h-sleep-and-circadian-rhythm\" class=\"wp-block-heading\">Sleep and Circadian Rhythm<\/h3>\n<p>Circadian rhythms play a vital role in a person\u2019s ability to sleep in one consolidated block of time at night and to stay up for\u00a0<span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"3\">roughly 16 hours straight every day.\u00a0<span id=\"source-3\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-left\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0<a class=\"trust-link font-size-h3 font-weight-bold text-primary-dark text-decoration-none\" tabindex=\"-1\" href=\"https:\/\/www.sleepfoundation.org\/about-us\/editorial-policy\">Trusted Source<\/a><\/span><a id=\"source-card-close-3\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"3\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252190\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">Integrative and Comparative Physiology<\/span>View Source\u00a0<\/span><\/span><\/span>As the sun sets in the evening, the brain begins producing melatonin, a hormone that induces sleepiness.\u00a0<span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"4\">Core body temperature also drops,\u00a0<span id=\"source-4\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-left\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0Trusted Source<\/span><a id=\"source-card-close-4\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"4\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252192\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">UpToDate<\/span><span class=\"source-description d-block font-size-md font-weight-normal line-height-md my-3\">More than 2 million healthcare providers around the world choose UpToDate to help make appropriate care decisions and drive better health outcomes. UpToDate delivers evidence-based clinical decision support that is clear, actionable, and rich with real-world insights.<\/span>View Source\u00a0<\/span><\/span><\/span>contributing to decreased alertness.<\/p>\n<p>These changes, driven by circadian rhythms, combine with\u00a0sleep drive\u00a0to cause a person to fall asleep at night. In the morning, as exposure to light increases, melatonin production stops and body temperature rises, promoting wakefulness.<\/p>\n<p>Sleep is most likely to be refreshing and restorative when circadian rhythms, the natural cycle of daylight and darkness, and sleep patterns align.<\/p>\n<h2 id=\"how-does-circadian-rhythm-work--1\" class=\"wp-block-heading mt-5 section-header\">How Do Circadian Rhythms Work?<\/h2>\n<p>Circadian rhythms are controlled by\u00a0biological clocks\u00a0located in organs and glands throughout the body, but all of these peripheral clocks are commanded by a \u201cmaster clock\u201d in a region of the brain called the suprachiasmatic nucleus (SCN).<\/p>\n<p>In most adults and adolescents, this master clock operates on a cycle that\u2019s slightly longer than 24 hours. In order to maintain alignment with the 24-hour rotation of the planet, the master clock must adjust by about 12 to 18 minutes every day. For this reason, it times circadian rhythms according to environmental cues known as \u201czeitgebers,\u201d German for \u201ctimekeepers.\u201d<\/p>\n<p>Light and darkness are the most important and powerful zeitgebers. Other zeitgebers involved in\u00a0<span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"5\">circadian timing\u00a0<span id=\"source-5\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-right\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0Trusted Source<\/span><a id=\"source-card-close-5\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"5\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252184\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">UpToDate<\/span><span class=\"source-description d-block font-size-md font-weight-normal line-height-md my-3\">More than 2 million healthcare providers around the world choose UpToDate to help make appropriate care decisions and drive better health outcomes. UpToDate delivers evidence-based clinical decision support that is clear, actionable, and rich with real-world insights.<\/span>View Source\u00a0<\/span><\/span><\/span>include :<\/p>\n<ul>\n<li>Meals<\/li>\n<li>Exercise<\/li>\n<li>Social interactions<\/li>\n<li><span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"6\">Daily routines<span id=\"source-6\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-right\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0Trusted Source<\/span><a id=\"source-card-close-6\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"6\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252186\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">Sleep<\/span>View Source\u00a0<\/span><\/span><\/span><\/li>\n<li>Stress<\/li>\n<\/ul>\n<p>These zeitgebers trigger the release of hormones in the brain and the delivery of chemical signals to body tissues. Thus, the\u00a0<span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"7\">master clock\u00a0<span id=\"source-7\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-right\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0Trusted Source<\/span><a id=\"source-card-close-7\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"7\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252188\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">Cell Cycle<\/span>View Source\u00a0<\/span><\/span><\/span>is able to effectively time vital body functions, such as the conversion of food into energy, fluctuations in body temperature, and when a person feels like sleeping or waking up.<\/p>\n<h3 class=\"wp-block-heading\">Babies, Toddlers, and Children<\/h3>\n<p>Circadian rhythms begin developing shortly after birth, but newborns don\u2019t have a fully established internal clock, which is why their sleep can seem unpredictable. Around 2 to 4 months of age, babies start to sync with the natural light-dark cycle, gradually developing more regular sleep and feeding patterns. By toddlerhood and early childhood, most kids follow a more predictable circadian rhythm, often rising early and needing naps or early bedtimes to meet their sleep needs.<\/p>\n<h3 class=\"wp-block-heading\">Teenagers<\/h3>\n<p>During puberty, circadian rhythms shift later\u2014a phenomenon known as a \u201csleep phase delay.\u201d This biological change causes teens to feel sleepy later at night and want to wake up later in the morning. Unfortunately, early school start times often conflict with this natural rhythm, contributing to sleep deprivation and difficulty concentrating during the day.<\/p>\n<h3 class=\"wp-block-heading\">Adults<\/h3>\n<p>In adulthood, circadian rhythms tend to stabilize around a more traditional pattern of feeling sleepy at night and alert during the day. However, individual preferences still vary. Some people are naturally early risers (\u201cmorning larks\u201d), while others are night owls. Work demands, stress, and lifestyle factors can all influence how closely an adult\u2019s sleep habits align with their internal clock.<\/p>\n<div id=\"block_3081888a6e985041b48a1b8b81da8276\" data-block-name=\"acf\/block-quotes\">\n<div class=\"blockquote-author has-gradient-lemon-reversed-gradient-background px-3 px-md-4 py-4 py-md-3\">\n<div class=\"row flex-md-nowrap p-1 align-items-center\">\n<div class=\"blockquote-author-content col-md-9 pb-3 pb-md-0\"><span class=\"d-block text-primary-dark font-weight-bold font-size-h3 font-size-md-h2 line-height-sm pb-2 pb-md-0\">\u201cAn adult\u2019s natural internal clock is on average 24.2 hours. We use external stimuli to help entrain this rhythm daily to 24 hours. Changing the amount and times of sunlight exposure, or changing our routines, can send signals to our \u2018master clock\u2019 and shift our natural circadian rhythms.\u201d<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<h2 id=\"link\" class=\"wp-block-heading mt-5 section-header\">What Can Disrupt Your Circadian Rhythm?<\/h2>\n<p>Your circadian rhythm is your body\u2019s internal clock, helping regulate sleep, wakefulness, hormone release, and other biological processes over a 24-hour cycle. But this rhythm can be thrown off by a variety of internal and external factors. Common disruptors include:<\/p>\n<ul class=\"ol-dotted\">\n<li><strong>Irregular sleep schedules:<\/strong>\u00a0Staying up late, sleeping in on weekends, or frequently changing your bedtime can confuse your body clock and make it harder to fall asleep or wake up consistently.<\/li>\n<li><strong>Shift work or jet lag:<\/strong>\u00a0Working night shifts or traveling across time zones disrupts your natural light-dark exposure, which can shift your internal clock out of sync with your environment.<\/li>\n<li><strong>Too much screen time at night:<\/strong>\u00a0Blue light from phones, tablets, and computers can suppress melatonin production\u2014a hormone that helps you sleep\u2014and delay your natural sleep-wake cycle.<\/li>\n<li><strong>Exposure to artificial light at night or lack of natural light during the day:<\/strong>\u00a0Bright indoor lighting at night and insufficient sunlight during the day can confuse your brain\u2019s understanding of when it\u2019s time to be awake versus asleep.<\/li>\n<li><strong>Underlying health conditions or medications:<\/strong>\u00a0Conditions like depression, insomnia, or neurological disorders, as well as certain medications, can interfere with your circadian rhythm and sleep quality.<\/li>\n<li><strong>Poor sleep environment or habits:<\/strong>\u00a0Inconsistent bedtime routines, high stress, caffeine or alcohol use before bed, and an uncomfortable sleep space can all interfere with your body\u2019s natural rhythm.<\/li>\n<\/ul>\n<div class=\"email-capture style-2 bg-primary-dark\">\n<div class=\"container-2 d-flex flex-column flex-md-row justify-content-center position-relative\">\n<div class=\"embeded-form-2\">\n<div class=\"klaviyo-form-TnEs6Q klaviyo-form form-version-cid-1\">\n<div class=\"needsclick  kl-private-reset-css-Xuajs1\">\n<form class=\"needsclick klaviyo-form klaviyo-form-version-cid_1 go3279073480 kl-private-reset-css-Xuajs1\" novalidate=\"\" aria-live=\"polite\" data-testid=\"klaviyo-form-TnEs6Q\">\n<div class=\"needsclick  kl-private-reset-css-Xuajs1\">\n<div class=\"needsclick  kl-private-reset-css-Xuajs1\" data-testid=\"form-row\">\n<div class=\"needsclick  kl-private-reset-css-Xuajs1\" data-testid=\"form-component\">\n<div class=\"needsclick  kl-private-reset-css-Xuajs1\"><\/div>\n<\/div>\n<\/div>\n<div class=\"needsclick  kl-private-reset-css-Xuajs1\" data-testid=\"form-row\">\n<div class=\"needsclick  kl-private-reset-css-Xuajs1\" data-testid=\"form-component\">\n<h2 id=\"what-happens\" class=\"wp-block-heading mt-5 section-header\">What Happens if Your Circadian Rhythm Is Off?<\/h2>\n<p>If you don\u2019t sleep when your body tells you that it\u2019s time to\u2014or if you sleep for long periods during the day\u2014your circadian rhythms might become\u00a0<span class=\"source-shortcode d-inline font-weight-normal\" data-source-index=\"8\">misaligned with the 24-hour cycle of day and night.<span id=\"source-8\" class=\"card source-card px-2 border-0 position-absolute bg-primary-brighter w-md-100 shadow source-card-left\" aria-hidden=\"true\"><span class=\"card-header border-0 p-4 pb-2 bg-primary-brighter\"><span class=\"trusted-label line-height-xs highlight-primary-bright\">\u00a0Trusted Source<\/span><a id=\"source-card-close-8\" class=\"source-card-close-icon m-4 pt-1 pr-2 text-align-right text-neutral-dark position-absolute\" tabindex=\"-1\" data-role=\"button\" aria-role=\"close\" data-source-index=\"8\"><\/a><\/span><span class=\"card-body p-4 pt-0 d-block smooth-scroll\" data-id=\"#references-252194\"><span class=\"source-title d-block h3 text-primary-dark font-weight-bold line-height-sm my-2\">Journal of the American Geriatrics Society<\/span>View Source\u00a0<\/span><\/span><\/span><\/p>\n<p>Misalignment between your circadian rhythms and your environment, especially over the long term, can have serious consequences for your health and wellbeing.\u00a0These include:<\/p>\n<ul class=\"ol-dotted\">\n<li><strong>Sleep problems:<\/strong>\u00a0Misaligned circadian rhythms can make it harder to fall asleep at bedtime, lead to more wake-ups during the night, and result in less sleep overall. Misalignment can first be confused as insomnia but frequent misalignment can in fact\u00a0contribute to the development of\u00a0insomnia.<\/li>\n<li><strong>Performance issues:<\/strong>\u00a0If your circadian rhythms are off, you\u2019re likely to experience a range of issues that affect your ability to function, such as\u00a0excessive sleepiness, difficulty focusing, memory problems, and difficulty performing high-precision tasks.<\/li>\n<li><strong>Emotional and social difficulties:<\/strong>\u00a0Sleep deprivation\u00a0makes it harder to manage stress and to regulate emotions, so if your circadian rhythms are out of sync, you\u2019re more likely to experience mental health struggles like depression and conflict in your relationships.<\/li>\n<li><strong>Accidents and errors:\u00a0<\/strong>Misaligned circadian rhythms increase your risk of having a car accident, making a serious mistake at work, or getting hurt on the job.<\/li>\n<li><strong>Health problems:\u00a0<\/strong>A range of health problems are associated with out-of-sync circadian rhythms, including obesity, diabetes, heart attacks, high blood pressure, and cancer.<\/li>\n<li><strong>Fatigue<\/strong>: Chronic misalignment of circadian rhythms or a lack of a routine to help entrain the internal clock can cause symptoms of low energy and grogginess.<\/li>\n<\/ul>\n<div id=\"block_927b965771a0a7e4f6a9618a4014a069\" data-block-name=\"acf\/block-quotes\">\n<div class=\"blockquote-author has-gradient-lemon-reversed-gradient-background px-3 px-md-4 py-4 py-md-3\">\n<div class=\"row flex-md-nowrap p-1 align-items-center\">\n<div class=\"blockquote-author-content col-md-9 pb-3 pb-md-0\"><span class=\"d-block text-primary-dark font-weight-bold font-size-h3 font-size-md-h2 line-height-sm pb-2 pb-md-0\">\u201cSleeping at the right times is just as important as the number of hours of sleep.\u201d<\/span><\/div>\n<div class=\"blockquote-author-content col-md-9 pb-3 pb-md-0\">\n<h2 id=\"maintain\" class=\"wp-block-heading mt-5 section-header\">How Do You Maintain a Healthy Circadian Rhythm?<\/h2>\n<p>Following\u00a0sleep hygiene\u00a0guidelines can help ensure that your sleep-wake cycle aligns with your circadian rhythms.<\/p>\n<ul class=\"ol-dotted\">\n<li><strong>Maintain a regular schedule:<\/strong>\u00a0To the extent that it\u2019s possible, eat your meals, go to bed, and wake up at the same time every day.<\/li>\n<li><strong>Implement a bedtime routine:\u00a0<\/strong>Choose one to three relaxing activities, like taking a warm bath or stretching, and do them before bed every night.<\/li>\n<li><strong>Exercise:\u00a0<\/strong>Get regular physical activity during the daytime.<\/li>\n<li><strong>Avoid naps late in the day:\u00a0<\/strong>Naps, especially in the late afternoon, can interfere with your ability to fall asleep at bedtime.<\/li>\n<li><strong>Avoid screens and bright light before bed:<\/strong>\u00a0Light, particularly blue light produced by\u00a0electronic devices, can inhibit melatonin production, so it\u2019s important to avoid light exposure when you\u2019re trying to wind down.<\/li>\n<li><strong>Enjoy sunlight during the day:<\/strong>\u00a0In the morning, open the curtains, and if you feel tired during the day, spend a few moments outside.<\/li>\n<\/ul>\n<p>If you\u2019re a shift worker or you have travel plans, talk to your doctor about how to minimize misalignments between your circadian rhythms, your sleep schedule, and your environment.<\/p>\n<figure class=\"wp-block-image size-full mt-5\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-252178\" src=\"https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/image-31.png\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" srcset=\"https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/image-31.png 1024w, https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/image-31-300x207.png 300w, https:\/\/www.sleepfoundation.org\/wp-content\/uploads\/2020\/09\/image-31-768x531.png 768w\" alt=\"\" width=\"1024\" height=\"708\" \/><\/figure>\n<h2 id=\"fix\" class=\"wp-block-heading mt-5 section-header\">How Do You Fix Your Circadian Rhythm?<\/h2>\n<p>Many people experience disruptions to their circadian rhythms at some point in their lives. If your circadian rhythms are out of sync with your environment, there are several approaches that might help you bring them back into alignment.<\/p>\n<ul class=\"ol-dotted\">\n<li><strong>Light therapy:<\/strong>\u00a0This common treatment for disrupted circadian rhythms involves strategically timed\u00a0exposure to light\u00a0and darkness. Controlling exposure to light can alter melatonin production and shift sleep and wake times earlier or later. This is often accomplished through the use of a light box or light-blocking glasses.<\/li>\n<li><strong>Melatonin supplements:<\/strong>\u00a0In some circumstances,\u00a0melatonin supplements\u00a0are an effective way to induce sleepiness at appropriate or desired times. Correct timing and dose of melatonin is important to help adjust the circadian rhythm effectively. This strategy can help travelers advance their bedtimes and may help individuals with certain circadian rhythm disorders adjust their sleep schedules.<\/li>\n<li><strong>Sleep schedule adjustments:<\/strong>\u00a0Strategic adjustments to your\u00a0sleep schedule\u00a0may help realign your circadian rhythms. If you\u2019re a shift worker, implementing a consistent sleep schedule, even on your off days, may help. If you\u2019re a frequent traveler, gradually adjusting your sleep schedule in small increments can help you minimize the effects of jet lag.<\/li>\n<li><strong>Medications:<\/strong>\u00a0In some cases, your doctor might recommend using medications to induce sleep or promote wakefulness. However, these medications can pose risks and may have undesirable side-effects, so they\u2019re often a second-line treatment for disrupted circadian rhythms and circadian rhythm sleep disorders.<\/li>\n<\/ul>\n<p>Before beginning any therapy intended to realign your circadian rhythms, make sure to talk to your doctor about your symptoms and treatment plans.<\/p>\n<h2 id=\"disorders\" class=\"wp-block-heading mt-5 section-header\">What Are Circadian Rhythm Sleep Disorders?<\/h2>\n<p>There are\u00a0six sleep disorders\u00a0that can cause abnormalities in a person\u2019s ability to sleep and wake in expected 24-hour patterns. Some of these disorders are environmental in nature or \u201cextrinsic,\u201d meaning that they happen when a person\u2019s activities or circumstances cause their circadian rhythms to desynchronize from their environment. Other disorders are \u201cintrinsic\u201d\u2014that is, they happen when a person\u2019s circadian timekeeping system doesn\u2019t function properly.<\/p>\n<ul class=\"ol-dotted\">\n<li><strong>Shift work disorder:<\/strong>\u00a0This disorder occurs when\u00a0shift work\u00a0prevents a person from sleeping according to their natural circadian rhythms. People with this disorder often struggle to stay awake during night shifts and to sleep at home during the day, which results in sleep deprivation. There\u2019s further disruption as many shift workers change sleep schedules throughout the week depending on if they\u2019re working or not working.<\/li>\n<li><strong>Jet lag disorder:\u00a0<\/strong>When people travel across multiple time zones, their circadian rhythms won\u2019t initially align with the light-dark cycle in their new environment. This can result in\u00a0jet lag, which causes daytime sleepiness, digestive problems, and sleep difficulties.<\/li>\n<li><strong>Advanced sleep-wake phase disorder:<\/strong>\u00a0Individuals with this disorder feel sleepy\u00a0before their desired bedtime\u00a0and wake up very early in the morning.\u00a0Sleep debt\u00a0occurs when people with this disorder force themselves to stay up late, as they\u2019re unable to sleep in.<\/li>\n<li><strong>Delayed sleep-wake phase disorder:\u00a0<\/strong>People with this disorder don\u2019t feel ready for bed until\u00a0very late at night, and they struggle to get up at conventional wake times. They would sometimes feel a \u201csecond wind\u201d in the evening and this pattern is frequently labeled as being a \u201cnight owl\u201d. This can result in sleep loss for people with work, school, or family obligations in the morning.<\/li>\n<li><strong>Non-24-hour sleep-wake rhythm disorder:\u00a0<\/strong>In people with this disorder, the master clock driving circadian rhythms\u00a0fails to make the daily corrections\u00a0that align it with the 24-hour day. Their internal clock may shift by a few minutes or hours every day, making it difficult to maintain a routine and\u00a0sleep at night or stay awake during the daytime.<\/li>\n<li><strong>Irregular sleep-wake rhythm disorder:\u00a0<\/strong>For individuals with this disorder, sleeping and waking are not governed by circadian rhythms. As a result, sleep tends to happen in\u00a0short intervals interspersed throughout the day without a clear pattern<\/li>\n<\/ul>\n<h2 id=\"h-when-should-you-see-a-doctor\" class=\"wp-block-heading section-header\">When Should You See a Doctor?<\/h2>\n<p>While occasional disruptions to your sleep-wake cycle are normal, persistent issues may be a sign of a circadian rhythm sleep disorder. You should consider seeing a doctor if:<\/p>\n<ul>\n<li>You regularly struggle to fall asleep or stay asleep despite keeping a consistent schedule.<\/li>\n<li>You feel excessively sleepy during the day, even after a full night\u2019s rest.<\/li>\n<li>Your sleep-wake times are significantly delayed or advanced compared to most people (e.g., you\u2019re only able to fall asleep in the early morning hours).<\/li>\n<li>Your job or lifestyle requires frequent shifts in your sleep pattern, and it\u2019s affecting your health or functioning.<\/li>\n<li>You suspect your sleep issues are impacting your mood, memory, or ability to concentrate.<\/li>\n<\/ul>\n<p>A sleep specialist can help identify the underlying cause and recommend treatments, such as light therapy, melatonin supplements, or behavioral changes. Early intervention can help realign your internal clock and restore healthier sleep patterns.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/form>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Key Takeaways Circadian rhythms are 24-hour cycles that help govern essential bodily functions\u2014especially the sleep-wake cycle\u2014by syncing internal processes with the day\u2013night cycle. Disruptions from factors like irregular schedules, travel, shift work, screen time, or underlying health issues can throw off your internal clock and negatively impact sleep and overall well-being. Maintaining a consistent sleep<\/p>\n","protected":false},"author":1,"featured_media":6254,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[309],"tags":[587],"class_list":["post-6253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-banner-headline","tag-sleep-wake-cycle","enable-dropcap","disable-2-columns"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Is Circadian Rhythm? - 29035f Journal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ksrini.life\/29035f-co-nz\/journal\/what-is-circadian-rhythm\/6253\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is Circadian Rhythm? - 29035f Journal\" \/>\n<meta property=\"og:description\" content=\"Key Takeaways Circadian rhythms are 24-hour cycles that help govern essential bodily functions\u2014especially the sleep-wake cycle\u2014by syncing internal processes with the day\u2013night cycle. Disruptions from factors like irregular schedules, travel, shift work, screen time, or underlying health issues can throw off your internal clock and negatively impact sleep and overall well-being. 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