Black, D. S., O'Reilly, G. A., Olmstead, R., Breen, E. C., & Irwin, M. R. (2015, April). Mindfulness meditation and improvement in sleep quality and daytime impairment among older adults with sleep disturbances: A randomized clinical trial. JAMA Internal Medicine, 175(4), 494–501. Retrieved from https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2110998?hc_location=ufi
Sleep gives your body a rest and allows it to prepare for the next day. It's like giving your body a mini-vacation. Sleep also gives your brain a chance to sort things out. Scientists aren't exactly sure what kinds of organizing your brain does while you sleep, but they think that sleep might be the time when the brain sorts and stores information, replaces chemicals, and solves problems.
When it comes to sleep, the less blue light you expose yourself to in the hours before bedtime, the better. Light of any kind can suppress your body’s production of melatonin, but blue light waves do so more powerfully, thereby shifting sleep-friendly circadian rhythms, says Harvard Health Publications. Besides electronic devices like tablets and smartphones, the biggest blue-light offenders in your home are likely fluorescent lightbulbs and LED lights, which many people use because of their energy efficiency and powerful light. Give yourself a romantic break from all the blue and eat dinner by candlelight.
Clusters of sleep-promoting neurons in many parts of the brain become more active as we get ready for bed. Nerve-signaling chemicals called neurotransmitters can “switch off” or dampen the activity of cells that signal arousal or relaxation. GABA is associated with sleep, muscle relaxation, and sedation. Norepinephrine and orexin (also called hypocretin) keep some parts of the brain active while we are awake. Other neurotransmitters that shape sleep and wakefulness include acetylcholine, histamine, adrenaline, cortisol, and serotonin.
I know what you are thinking: Is he serious? How can stopping my caffeine intake at 2:00 p.m. help me sleep better? It’s simple! Caffeine has what’s called a “half-life” of about 8 hours, which means that its level is reduced, but still somewhat effective in your system after this time. Caffeine is a stimulant, and it will prevent you from either falling asleep or having good quality sleep.
A study published in Sports Medicine out of France was conducted to help better understand ways to improve the sleep of elite soccer players given their chaotic schedules, late-night games and need for recovery through a good night of sleep. The study found that by consuming carbohydrates — such as honey and whole grain bread — and some forms of protein, especially those that contain serotonin-producing tryptophan like turkey, nuts and seeds, it helped promote restorative sleep. Even tryptophan-filled tart cherry juice, which also contains healing properties like antioxidants, could be a great option. (3)
Cognitive Behavioral Therapy for Insomnia is a pretty common technique. Also called CBT-I, the therapy typically involves self-monitoring, mental strategies (like developing positive thoughts about sleep), and creating an environment that promotes sleep—and it’s been shown to improve sleep quality. Self-help treatment for insomnia symptoms associated with chronic conditions in older adults: a randomized controlled trial. Morgan K, Gregory P, Tomeny M. Journal of the American Geriatrics Society, 2012, Oct.;60(10):1532-5415. Learn these strategies with the help of a therapist or with online guidance or books—both are equally effective ways of implementing CBT-I. Efficacy of a behavioral self-help treatment with or without therapist guidance for co-morbid and primary insomnia—a randomized controlled trial. Jernelov, S., Lekander, M., Blom, K., et al. Department of Clinical Neuroscience, Karolinska Institutet, Sweden. BMC Psychiatry, 2012 Jan 22;12:5 Not into seeing a therapist? Check out Sleepio, a digital program that helps users learn about and implement CBT practices from the comfort of their own homes.
One of the vital roles of sleep is to help us solidify and consolidate memories. As we go about our day, our brains take in an incredible amount of information. Rather than being directly logged and recorded, however, these facts and experiences first need to be processed and stored; and many of these steps happen while we sleep. Overnight, bits and pieces of information are transferred from more tentative, short-term memory to stronger, long-term memory—a process called "consolidation." Researchers have also shown that after people sleep, they tend to retain information and perform better on memory tasks. Our bodies all require long periods of sleep in order to restore and rejuvenate, to grow muscle, repair tissue, and synthesize hormones.
Ongoing sleep deficiency can lower your immune system, making it harder for your body to fight infections. It can trigger mood changes like irritability, depression, and anxiety. And studies have linked insufficient sleep to weight gain; increased risk of developing heart disease, high blood pressure, and type 2 diabetes; and even shorter life expectancy.
Sleeping well directly affects your mental and physical health and the quality of your waking life. Fall short and it can take a serious toll on your daytime energy, productivity, emotional balance, and even your weight. Yet many of us regularly toss and turn at night, struggling to get the sleep we need. There is a solution. Making simple but important changes to your daytime routine and bedtime habits can have a profound impact on how well you sleep, leaving you feeling mentally sharp, emotionally balanced, and full of energy all day long.
Mindful breathing practices have been a part of yoga and Eastern wellness modalities for centuries but aren’t as popular in Western culture. The most well-known champion of the 4-7-8 breathing technique in the U.S., who is somewhat responsible for the prevalence that the technique does have amongst integrative medicine practitioners, yogis, and those in search of stress reduction and overall relaxation, is Harvard-educated Andrew Weil, MD.
Use sleeping aids and devices: Experiment with white noise machines, adjustable beds, sleep masks, and indoor air purifiers if you need help sleeping. White noise machines or noise reducers create ambient or white noise, which makes it more difficult for a sleeper to hear any potentially disruptive noises. Adjustable beds can alleviate pain that can disturb sleep, especially for those suffering from hip and knee pain or acid reflux disease. A sleep mask tricks the brain into falling asleep more quickly for people who need to sleep or nap during daylight, and indoor air purifiers lessen symptoms suffered by those with allergies or nasal congestion.
In other words, daylight helps your body’s natural clock—which is dictated by the 24-hour cycle of day and night—know when to feel awake and when to feel tired. When your hypothalamus—the gland responsible for regulating sleep and energy levels—senses a change in light, it tells your body to ramp up or ramp down its production of the sleep hormone melatonin. During the day, you feel energized and alert because you don’t produce much melatonin. At night, you produce more, so you feel sleepy.