This third one is what I study. The “synaptic homeostasis hypothesis” is this idea that during the day, we make all these connections with the world around us. It used to be like, “Don’t go over there—the lions live there now.” Now it’s like, “What did Barbara say to me in the office?” These excitatory connections we make during the day result in the neurons in our brains getting overall higher activation. Then during the nighttime when we sleep, we have a downregulating process where the things that didn’t really matter to your survival sink to the bottom, and the things that are most relevant to your survival rise to the top. What deep sleep does is all the neural processing, and what REM sleep [rapid-eye-movement sleep] and light sleep do is basically integrate that into your long-term personality and understanding of the world.
If you try just one sleep hack, make it this one. Junk light — the blue light that emits from your smartphone, laptop, and tablet screens — is wrecking your sleep. Too much blue light messes with your brain’s production of melatonin — the hormone that tells your body when it’s time to snooze. Blue light wakes you up and tells your brain that it’s daytime. Screens aren’t the only source of junk light — street lamps and LED lightbulbs are also to blame.
Unfortunately, a person can't just accumulate sleep deprivation and then log many hours of sleep to make up for it (although paying back "sleep debt" is always a good idea if you're sleep deprived). The best sleep habits are consistent, healthy routines that allow all of us, regardless of our age, to meet our sleep needs every night, and keep on top of life's challenges every day.
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.
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.
As an insomniac, I get it. Good nights of natural sleep are few and far between. You take any amount of shut eye you can get, whether its restful sleep or not. Unfortunately, for those of us who can't fall asleep or stay asleep with a disjointed sleep pattern, the effects turn into a real nightmare. Sleep deprivation not only leaves you feeling out of sorts the next day, but it can lead to a host of unhealthy side effects. The last thing you need to worry about when you can't sleep is how your lack of sleep is effecting your health. That's where natural sleep aids come in.
Why is working out seemingly so beneficial? The mechanisms aren’t entirely known, but National Sleep Foundation experts say that it could have to do with exercise’s ability promote feelings of relaxation and reduce feelings of stress, anxiety, and depression. Staying active might also help to keep your body’s natural sleep-wake cycle in sync—particularly if you do it outside (more on that below).
A lot of people don’t understand that these are two very, very different processes. A lot of people probably learned from basic psych in high school that you have these sleep stages: light sleep > deep sleep > light sleep > REM, and repeat. As you sleep more, you get less and less deep sleep, and also if you sleep-deprive yourself, you get more deep sleep.
Reconditioning. A few simple steps can help people with insomnia to associate the bedroom with sleep instead of sleeplessness and frustration. For example, use the bed only for sleeping or sex and go to bed only when you're sleepy. If you're unable to sleep, move to another room and do something relaxing. Stay up until you are sleepy, and then return to bed. If sleep does not follow quickly, repeat.
You may be familiar with the sleep hormone melatonin. Every night when we go to bed, this hormone, triggered by darkness, tells the brain it's sleepy time. Unfortunately, not everyone's body produces enough of the common sleep aid to get to sleep and this can cause insomnia. Bananas, however, can give your body a boost of melatonin that you might be lacking.
The amount of sleep needed each night varies, but for adults, getting at least seven hours every night is crucial to having a healthy mind and body. And when we don’t get enough sleep, our bodies aren’t the only things that suffer. The Centers for Disease Control and Prevention reports that a whopping 49.2 million people have trouble with focus due to lack of sleep, and the National Highway Traffic Safety Administrationreported that millions nod off while driving! (1, 2)
Certain protein-rich foods like milk, eggs, peanuts, and soy contain an amino acid called tryptophan that causes sleepiness, says Alissa Rumsey, MS, RD, founder of Alissa Rumsey Nutrition and Wellness. For best results, combine these foods with a source of carbohydrates, which help more tryptophan enter the brain. Some recommendations: roasted soybeans, peanuts, sunflower seeds, cheddar cheese, canned tuna, and pistachios. You don't need much: "Even smaller snacks can provide a tryptophan dose that studies have shown to be significant in helping with sleep," Rumsey says.
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Unwind by keeping the lights low. Light signals the brain that it's time to wake up. Staying away from bright lights (including computer screens!), as well as meditating or listening to soothing music, can help your body relax. Try to avoid TV, computers and other electronics, and using your phone (including texting) at least 1 hour before you go to bed.
The influence of tryptophan on sleep continues to be studied in major sleep laboratories across the nation. While this amino acid is not available as a natural dietary supplement or sleep remedy, you can easily include tryptophan in your diet through food sources such as turkey, cheese, nuts, beans, eggs, and milk. You can also boost serotonin levels in the brain -- helping you to feel calm and sleepy -- by eating foods rich in carbohydrates.
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)
Invest in really comfy bedding. This is just common sense — if it feels really good to climb in bed at night, you’ll look forward to it. A quality mattress that suits your sleeping style, along with supportive pillows and soft, breathable bed linens, can mean the difference between tossing and turning and drifting off as soon as your head hits the pillow.