How L-theanine works: L-theanine elevates levels of GABA, as well as serotonin and dopamine, neurochemicals that regulate emotions, mood, concentration, alertness, and sleep, as well as appetite, energy, and other cognitive skills. At the same time, L-theanine also reduces levels of chemicals in the brain that are linked to stress and anxiety. L-theanine boosts production of alpha waves in the brain, which enhance relaxation, focus, and even creativity. That can make L-theanine a good choice for people who are looking to enhance their daytime relaxation without worrying about becoming sleepy and fatigued during the day.
They discovered that we have these molecular pathways that are responsive to light and allow the body to synchronize to the comings and goings of the sun. When that is working at its most effective, and all the cells are working as a team, overall health is much better. I think most people don’t understand the importance of light and how we consume it. Artificial light is completely at odds with our biology.
How glycine helps sleep: Glycine can improve symptoms of insomnia, and can help you bounce back to healthy sleep cycles after a period of disrupted sleep. A recent study of the effects of glycine as a supplement showed it triggered a drop in body temperature and at the same time helped people both fall asleep more quickly and spend more time in REM sleep. And glycine may help you move more quickly into deep, slow wave sleep. 
4. Sleep in a familiar, dark, and quiet room that is adequately ventilated and neither too hot nor too cold. If possible, try to use this room for sleeping only, so that you come to associate it with sleep. In time, your room could become another sleeping cue. If your sleeping environment is sub-optimal, try to use aids such as earplugs or a sleeping mask.
Sleep needs and patterns of sleep and wakefulness are not the same for everyone. The first step in determining your need for sleep is through self-evaluation. Ask yourself: "How tired do I feel during the daytime? When do I feel most alert? When does fatigue set in?" Even moments of sleepiness that you may think of as routine, for instance, falling asleep on the subway on the way to work, or during a lecture, are likely a sign that you are not getting enough sleep.
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.
Valerian is thought to affect levels of one of the calming neurotransmitters in the body, gamma-aminobutyric acid (GABA). It also relieves muscle spasms and is thought to help alleviate menstrual period pain. Valerian is typically taken an hour before bed. A standard dose is 450 mg. If taken during the day, valerian may result in drowsiness—it is often taken in two to three 300 mg doses with meals. 
Anyway, basically your biggest zeitgeber is sunlight, and that’s the environmental cue that controls energy levels as well. But then also timing of meals, exercise, and having a consistent bedtime are all zeitgebers that impact your circadian rhythm. A bigger part of the problem is that we’re indoors so much now, so we don’t get that natural occurring sunlight when you wake up in the morning. That’s one of the best things that you can do to entrench your circadian rhythm.
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.
If you’re bringing the stress of your job and daily life to bed with you, you’re not going to sleep well. Resolve to keep everything that’s stressful out of your bedroom, so don’t bring in work materials, your phone or even allow yourself to think about work while in your bedroom. You can also gain control over your worries and anxieties by keeping a worry journal. Write about the things that are bothering you so you can work through them instead of bringing them to bed with you.
Valerian is one of the most common sleep remedies for insomnia. Numerous studies have found that valerian improves deep sleep, speed of falling asleep, and overall quality of sleep. However, it's most effective when used over a longer period of time. One caveat? About 10% of the people who use it actually feel energized, which may keep them awake. If that happens to you, take valerian during the day. Otherwise, take 200 to 800 milligrams before bed.

These products do not cure or shorten the length of the common cold and may cause serious side effects. To decrease the risk for serious side effects, carefully follow all dosage directions. Do not use this product to make a child sleepy. Do not give other cough-and-cold medication that might contain the same or similar ingredients (see also Drug Interactions section). Ask the doctor or pharmacist about other ways to relieve cough and cold symptoms (such as drinking enough fluids, using a humidifier or saline nose drops/spray).
Diphenhydramine is an antihistamine used to relieve symptoms of allergy, hay fever, and the common cold. These symptoms include rash, itching, watery eyes, itchy eyes/nose/throat, cough, runny nose, and sneezing. It is also used to prevent and treat nausea, vomiting and dizziness caused by motion sickness. Diphenhydramine can also be used to help you relax and fall asleep.
You can take one step per day to improve your sleep. Below are suggestions for what to work on each day for 30 days. It's not necessary for it all to unfold in an orderly manner: you may find that you need to take longer on one particular task, and conversely, you may be able to breeze by recommendations that are irrelevant to you. Personalize the plan to fit your needs and your situation as best as you can, and allow flexibility in the process.
You have a peak moment of awakeness during the morning. After lunch you usually have a glucose spike, especially if you have a big heavy lunch, like a cheeseburger. That glucose spike combined with a circadian dip gives you a period of fatigue between around 2 and 4pm. You’ll then have another spike in alertness right before dinner, and then you’ll start getting tired again closer to bedtime. That’s your 24-hour circadian rhythm, basically.

Rather than counting sheep, visualize an environment that makes you feel calm and happy. The key to success is thinking of a scene that’s engaging enough to distract you from your thoughts and worries for a while. In an Oxford University study published in the journal Behavior Research and Therapy, insomniacs who were instructed to imagine a relaxing scene, such as a beach or a waterfall, fell asleep 20 minutes faster than insomniacs who were told to count sheep or do nothing special at all.
One reviewer says that the Stress-Relax Tranquil Sleep Chewable Tablets have helped calm him down and stopped his mind from spinning when lying in bed. Someone else says that the tablets even help him get better sleep when having panic attacks. Try the Stress-Relax chewables for your own anxiety, but remember to see a professional if you feel that your stress is too much to manage. 
The pineal gland, located within the brain’s two hemispheres, receives signals from the SCN and increases production of the hormone melatonin, which helps put you to sleep once the lights go down.  People who have lost their sight and cannot coordinate their natural wake-sleep cycle using natural light can stabilize their sleep patterns by taking small amounts of melatonin at the same time each day.  Scientists believe that peaks and valleys of melatonin over time are important for matching the body’s circadian rhythm to the external cycle of light and darkness.
Whether you’re scrambling to meet the demands of a busy schedule or just finding it hard to sleep at night, getting by on less sleep may seem like the only answer. But even minimal sleep loss can take a substantial toll on your mood, energy, mental sharpness, and ability to handle stress. And over the long-term, chronic sleep loss can wreak havoc on your mental and physical health. By understanding your nightly sleep needs and how to bounce back from sleep loss, you can finally get on a healthy sleep schedule and improve the quality of your waking life.
You know a good night’s sleep is the key to a happy and well-rested tomorrow. And getting enough shut-eye can help you drive more safely, maintain a healthy weight, and even lower your risk for heart disease and diabetes. But if you’re stuck in a cycle of tossing and turning—and then start stressing about the fact that you’re tossing and turning—it's all too easy to feel frustrated. Not so fast: With these tips you’ll be snoozing within minutes of your head hitting the pillow.
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