The thalamus acts as a relay for information from the senses to the cerebral cortex (the covering of the brain that interprets and processes information from short- to long-term memory). During most stages of sleep, the thalamus becomes quiet, letting you tune out the external world. But during REM sleep, the thalamus is active, sending the cortex images, sounds, and other sensations that fill our dreams.
It seems like sleep should come naturally. But when it doesn't, you might quickly find yourself pleading, "Help me sleep!" It can be a frustrating, unnerving experience to have insomnia, characterized by difficulty falling or staying asleep. You might lie awake for hours in bed at night. When you awaken without feeling refreshed, this problem quickly becomes a drag on the rest of your life and health.
This secret was revealed in a 1981 book called "Relax and Win: Championship Performance," but has gained traction online in recent months. It's a meditation method designed specially for soldiers trying to fall asleep in difficult conditions. It's said to work for 96 percent of people after six weeks of practice. Here's how the Independent describes it:
Another study found that the mineral helps decrease cortisol, the “stress hormone” that can keep you up at night. Dr. Lipman says he recommends magnesium to insomnia patients because it calms down the nervous system. But because the evidence around magnesium as a sleep aid is sparse, you might consider incorporating more magnesium into your diet rather than spending money on a supplement. It's found in quinoa, almonds, spinach, pumpkin seeds, peanuts, black beans, and brown rice.
But other times, insomnia can become a long-term thing. Sometimes, that can happen as the result of a more serious health condition, like depression, anxiety, or sleep apnea. Other times, insomnia can stem from crappy sleep habits, like eating too many heavy snacks before bed, sleeping in an uncomfortable environment, or staying glued to your smartphone or tablet all night long.
7. Reduce your overall stress. At the same time, try to do something productive or enjoyable each day. As da Vinci said, a well-spent day brings happy sleep (and a well-spent life brings happy death). While lying in bed, do some deep breathing: breathe in through your nose and hold the air in for several seconds, then purse your lips and gradually let the air out. Let out as much air as you can and start again. Deep breathing also helps with controlling pain.
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.
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.
We evolved from bacteria in the ocean that could differentiate sunlight from darkness—that’s what ended up forming the human eye. That means every organism is responsive to a circadian rhythm that’s largely dictated by sunlight. The photo receptors in our eyes pick up on sunlight, which controls the release of melatonin and all these other neurotransmitters that dictate your energy levels throughout the day.
You already know the most common drinks to help you sleep, but for an even more effective herbal insomnia cure, try valerian tea. This herb is found in health food stores, at pharmacies, or from a qualified herbalist, and when brewed into tea, it can reduce the time it takes to fall asleep and produce a deep, satisfying rest. Also taken in capsule form or as a tincture, this organic sleep aid helped about one in 13 insomniacs enjoy a longer night’s sleep (with fewer middle-of-the-night wake-ups) in a Norwegian study. And as for insomnia due to menopause, there’s more good news: 30 percent of menopausal and postmenopausal women got better sleep after drinking valerian tea, according to a recent study from Iran. Find out what your sleep position says about your personality.
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.
NINDS health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the National Institute of Neurological Disorders and Stroke or any other Federal agency. Advice on the treatment or care of an individual patient should be obtained through consultation with a physician who has examined that patient or is familiar with that patient's medical history.
Wear socks to bed. While a cooler core body temperature helps you fall asleep faster and get more restful sleep, cold extremities (hands and feet) can have the opposite effect. If you tend to have cold feet at bedtime, put on a pair of cozy socks, rest your feet on a heating pad, or pile an extra blanket on the foot of your bed. If none of those appeal to you, try wearing a pair of warm slippers in the evening so that your feet will be toasty when you climb in bed for the night.