Circadian rhythms direct a wide variety of functions from daily fluctuations in wakefulness to body temperature, metabolism, and the release of hormones. They control your timing of sleep and cause you to be sleepy at night and your tendency to wake in the morning without an alarm. Your body’s biological clock, which is based on a roughly 24-hour day, controls most circadian rhythms. Circadian rhythms synchronize with environmental cues (light, temperature) about the actual time of day, but they continue even in the absence of cues.
Of all the sleep tips you could ever read or hear about, the most important one is to stick to one sleep schedule—every day. This means going to bed and waking up at the same time each day. When sleep has a regular rhythm, your biological clock will be in sync and all of your other bodily functions will go smoother, including your sleep. You are probably squirming as you read this tip, thinking about your own sleep issues and how you have anything but a regular sleep routine.
Alcohol is a known sleep saboteur — it may make you fall asleep, but it disrupts normal sleep cycles, causing you to wake up in the middle of the night. Cherry juice, on the other hand, may help ensure restful slumber, because it’s thought to be naturally high in melatonin, a hormone that helps regulate your body’s sleep-wake cycles. A small study of 11 subjects published in March 2017 in the American Journal of Therapeutics found that participants with insomnia who drank tart cherry juice for two weeks increased the amount they slept. Cherry juice is presumably low risk, but if you have a tendency toward elevated sugar it's best to discuss with your doctor before you start.
Even though sleep is pretty much the opposite of physical exertion, exercise conducted at the right time of day (i.e., not too close to bedtime) is one of the best things you can do to get a good night’s rest. Exercise helps regulate the body’s natural circadian rhythm, which promotes sleep. According to the National Sleep Foundation, exercise can also improve insomnia by lowering symptoms of anxiety and depression, two conditions linked to sleep disruption. Daily physical activity also helps reduce cortisol, the body’s primary stress hormone.
One must develop some kind of pre-sleep ritual to break the connection between all the stress and bedtime. This is perhaps even more important for children. These rituals can be as short as 10 minutes or as long as an hour. Some find relief in making a list of all the stressors of the day, along with a plan to deal with them, as it serves to end the day. Combining this with a period of relaxation, perhaps by reading something light, meditating, or taking a hot bath can also help you get better sleep. And don't look at that clock! That tick-tock will tick you off.
REM sleep occurs after the fourth stage of NREM sleep, with the first stage occurring about 90 minutes after you first fall asleep. The first period of REM lasts around ten minutes, and each stage lengthens until the final stage, which may last as long as an hour. Your brain activity is heightened during REM sleep, and you experience intense dreaming plus periods of muscle paralysis. As you age, you spend less time in REM sleep; adults spend about 20% of their sleep in REM, while infants spend about 50% of sleep in REM.
The National Sleep Foundation reports that insomnia is common among those who are depressed and notes that people with insomnia have a much higher risk of becoming depressed. (11) Research from the Department of Psychology at the University of North Texas shows that depression may affect many aspects of sleep, from getting to sleep to staying asleep. By treating depression using St. John’s wort, you may be able to find that restful sleep your body and mind longs for. (12)
Visualization: Involves actively imagining a relaxing scene. You can try it in bed for 20 minutes before falling asleep. Involve all your senses. If you're imagining yourself on a tropical island, think of the way the warm breeze feels against your skin. Imagine the sweet scent of the flowers, look at the water and listen to the waves. The more vivid the visualization and the more senses you involve, the more effective it will be.
There is usually no particular biological or health reason to worry about sleeping less or more than other people. Your spouse might get mad at you if you sleep too much and you might get into hot water if you nap on the job, but most people have no reason to worry about going outside the norms when it comes to sleep duration. You might think sleeping too much is a problem, that excessive sleep is a waste of time, and indeed hypersomnia is recognized as a clinical condition. But not all long sleepers can be classified as hypersomniac and in any cases, there is nothing doctors can do for hypersomnia except prescribe stimulants. So it may not be worth worrying about.
This blog does not provide medical advice. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on Restonic.com. If you think you may have a medical emergency, immediately call your doctor or dial 911.