![]() Circadian rhythms, the daily rhythms in physiology and behavior, regulate the sleep-wake cycle. Each has unique characteristics including variations in brain wave patterns, eye movements, and muscle tone. NREM sleep is divided into stages 1, 2, 3, and 4, representing a continuum of relative depth. There are two types of sleep, non-rapid eye movement ( NREM) sleep and rapid eye movement ( REM) sleep. Humans spend about one-third of their lives asleep. However, over the course of the night - and over several nights - your breathing rate should remain relatively stable, according to Whoop, a neurobiology tracking technology.CHAPTER SUMMARY This chapter provides a brief overview of sleep physiology and how sleep patterns change over an individual’s life span. Breathing rate may increase during REM sleep when you're dreaming (especially if you're having an intense dream), but should revert to a slow pattern when you cycle into non-REM sleep. In a healthy, relaxed adult, breathing should be calm and consistent throughout sleep. Brager says.Ī normal breathing rate for adults is 12 to 20 breaths per minute, and like heart rate, expect your sleep tracker to show the low end of your normal. If it doesn't, it could indicate a problem: "Clinically significant alterations in breathing and heart rates are indicative of a sleep disorder, mostly commonly sleep apnea due to the constant, intermittent inability to breathe," Dr. Like heart rate, breathing rate should decline during sleep. Your breathing rate should remain relatively stable throughout the night. During REM sleep, your brain becomes highly active and your heart may follow suit, but your heart rate still shouldn't soar past your normal daytime heart rate. There is one caveat: It's normal for heart rate to increase during REM sleep. High heart rates during sleep may indicate medical or psychological conditions, including anxiety or atrial fibrillation. If your heart rate doesn't decline during sleep - or worse, it speeds up to higher than your daytime resting heart rate - consider talking to a sleep doctor. A normal resting heart rate ranges from 60 to 100 beats per minute, according to Harvard Health, although very active people may have resting heart rates from 40 to 50 beats per minute.ĭuring sleep, expect your heart rate to drop to the low end of your normal: If your normal daytime resting heart rate ranges from 70 to 85, for example, expect to see a sleeping heart rate of 70 to 75 beats per minute, or even slower. Generally, sleeping heart rates should hover around the low end of normal, even for people who aren't physically fit. Everyone's daytime resting heart rate is different, so everyone's sleeping heart rate will differ, too. Sleep is a restorative process, so it only makes sense that your heart rate declines during sleep, Dr. Your heart rate should be relatively low while you're asleep. In this article, we explain what your sleep data points mean and how to use them to your benefit. The information available to you depends on the device you have, but most sleep trackers collect a variety of data points. OK, maybe not superhuman (unless you're an expert biohacker), but you'll still feel dang good. ![]() If you utilize that data, you can manipulate your diet, workout routine, stress management tactics and other factors to become superhuman. ![]() ![]() But tracking your sleep can reveal a wealth of information about your health that you may have been totally oblivious to before. When you first look at your sleep tracker data, all those numbers and graphs may feel dizzying. If you have a smartwatch, fitness tracker or even a health app on your phone, you can gather useful sleep data from the comfort of your own bed, ranging from heart rate to breathing rate and sleep stage percentages. These days, you don't have to go into a sleep clinic to learn key details about your sleep. This story is part of Health by the Numbers, CNET's deep dive into how we quantify health. ![]()
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