If you answered no to either of these questions, you're in good company: two-thirds of Americans report getting less than the ideal 8 hours of sleep per night.
In this modern age of “rise and grind," it can feel almost shameful to announce that your bedtime is 10 pm. We live in a culture that is in a constant state of stimulation and hustle. No wonder we're seeing an exponential increase in conditions like Alzheimer’s, obesity, and autoimmune disorders .
The obesity epidemic continues to grow and is costing our healthcare system millions of dollars a year. A study done at University of Chicago put participants on a calorie-restricted diet for 8 weeks. One group slept 5.5 hours a night and the comparison group slept 8.5 hours a night. The group that slept for at least 8 hours lost 55% body fat with all other factors remaining constant.
While sleep is not the only factor in sustaining weight loss , it is a key component that is often overlooked. If you have serious trouble getting enough sleep, seek out the help of a functional medicine practitioner to help you get your sleep under control.
Excellent sleep is a delicate balance between key hormones produced in our bodies, and each one plays a vital role.
This hormone is often associated with stress and given a bad reputation. If we didn’t produce cortisol after exercise or during stressful situations, we would not survive. The key to optimizing cortisol is producing it at the right time and at the correct amounts.
Normally your cortisol levels should peak around 6 am and drop to their lowest levels around 10 pm. Chronic sleep deprivation has a correlation with elevated nighttime cortisol. Cortisol function is one of the many specialty tests we perform at Parsley Health.
The highest production of HGH is during the first half of our sleep in the delta sleep stage. This is when we achieve our deepest sleep and potential for restoration. That’s why HGH is also known as the "fountain of youth" hormone! It aids in building more lean muscle tissue, protects your muscle from breaking down and gives you energy. This means you are able to lose weight more efficiently and maintain lean body mass when you sleep well.
Available over the counter at local stores, this supplement is actually a powerful hormone produced by the pineal gland. It increases our bodies' brown adipose tissue and burns white adipose tissue (as we age, our bodies naturally lose brown adipose tissue).
Research has shown that higher levels of melatonin support bone health, improve insulin sensitivity, and increase lifespan. Recommended dosing varies and is best discussed with your doctor.
This is the satiety hormone. One night of poor sleep reduces leptin levels and makes us want to eat the whole pint of ice cream.
This is the hunger hormone. These levels increase by 15% increase after one poor night of sleep. This is why we want to eat more sugar and carbs when we're tired.
Compared to all the fancy technology that exists today, our bodies are still pretty primitive and basic. There is no gadget or app that can replace good, old-fashioned quality sleep. Not getting enough sleep impacts our long-term brain health, memory, and detoxification.
Have you ever craved broccoli at 1 am while binge-watching on Netflix? Of course not! We crave foods like chips and cookies when we are sleep-deprived. Sleep decreases glucose to the brain, which is its primary fuel source. Our bodies naturally seek out quick forms of glucose even when it’s not healthy for us.
UC Berkeley did a study that showed increased activity in the amygdala (the reptilian part of our brain) and decreased activity in the insular cortex and frontal lobe (responsible for willpower). This means even when we know we shouldn’t eat that cookie, our willpower to resist temptation is drastically reduced when we are sleep-deprived.
Not only does lack of sleep cause cravings and weight gain, it also affects our brain health and memory. When we sleep our glymphatic system is 10x more active. This system is composed of glial cells that are responsible for sweeping away all the toxins that have accumulated throughout the day. In fact, our brain cells shrink about 50% during sleep to allow the glial cells to work efficiently.
Some researchers have reported that the increased incidence of Alzheimer’s is connected to the rise of insomnia in Americans. Alzheimer’s disease is characterized by an increase in amyloid plaques in the brain. One of the waste products cleared during sleep is beta amyloid, so Alzheimer’s may just be a buildup of waste that hasn’t been cleared over time.
Alcohol is ingrained in our society as a way to both relax after a long day and socialize with friends and family. When it comes to sleep, though, it can be very detrimental to our health.
Alcohol blocks REM sleep which is our dream state as well as when our memories get solidified from short to long-term. Even just one glass of wine can produce an REM rebound effect where we wake up feeling hungover. This is because the quality of our sleep was poor, even if we technically slept 8 hours.
Hack your way to better-quality sleep with these simple tips.
There is on average about 200 mg in 1 cup of coffee. It takes 72 hours to completely detoxify caffeine from your system to reach that same level of “buzz”. When you regulate your coffee intake, the receptors don’t down-regulate and makes the caffeine more effective when you do drink it.
I know it’s hard for all of us. Why? Each time we scroll through Instagram or watch one more episode on Netflix, we are activating the dopamine reward centers in our brain. These centers are constantly seeking and always want more even against our better judgement. It takes practice and commitment but power down all your devices at least 30 minutes before bedtime for quality sleep. The blue light emitted from our devices lowers melatonin by up to 50%.
We have 400x more melatonin in our gut than in our brains. In addition, the bacteria in your gut also interferes with this key sleep hormone. Eating a diet rich in prebiotic foods and foods that are high in sleep nutrients are essential. Potassium, for example, helps us stay asleep and can be found in avocados.
Magnesium helps us to fall asleep and 80% of us are chronically deficient! This is one of the few nutrients I recommend taking a supplement for as foods aren’t going to provide adequate amounts.
When we workout, cortisol is naturally produced. To mimic our natural cortisol curve it’s best to workout in the morning to sleep better. Even if it’s just for 5-10 minutes, doing a rebounder or a few rounds of weights can have a profound impact. Or try to get sunlight in between the hours of 6-8 am as this helps to make cortisol drop lower at night.
Dr. Tiffany Lester is a board-certified Integrative Medicine Physician who has practiced a holistic approach to health for over a decade. She is a graduate of the University of Cincinnati College of Medicine, where she completed her training in internal medicine. She also graduated from the Integrative Medicine Fellowship at the University of Arizona with Dr. Andrew Weil, and has extensive training in functional medicine through the Institute of Functional Medicine. Dr. Lester is also featured as a teacher for the Institute of Integrative Nutrition and regularly contributes to national wellness publications.