It is 8:00 am, pre-coffee (if that’s your thing), and you’re getting ready to walk out the door after a night of staying up with your sick spouse, child, or roommate. You’re starting to feel super-human, juggling all your pre-work morning responsibilities with a heavy head and groggy eyes, when your spouse/child/roommate walks up to you and asks an innocent question: “I’m hungry. What are we having for breakfast?” You look at their cheerful face and take instant offense. You think, “What do you mean, what’s for breakfast? Can’t you see I’m simultaneously feeding the dog, prepping the beans for tonight’s slow-cooker dinner, and reading Junior’s school newsletter?” According to a new U.C. Berkeley study published in the Journal of Neuroscience earlier this week, there is a strong link between a lack of quality sleep and decreased ability to distinguish between positive and negative emotional facial expressions in others. Researchers viewed brain scans and monitored the heart rates of 18 adult participants while they randomly viewed 70 images of faces with random expressions: positive, neutral, and negative emotions. Each individual viewed the facial images twice, once when they were fully rested and once after they had been awake for 24 consecutive hours. The study noted a neural link between the quality and amount of sleep a person gets and his or her ability to correctly process others’ facial expressions. The results of the study inferred that there is “a role for REM sleep in affective brain recalibration” and “the next-day success of emotional discrimination…” All the more reason to get a good night’s sleep! For more information on the study, you can refer to the following articles: http://news.berkeley.edu/2015/07/14/brain-facialexpressions/ http://www.huffingtonpost.com/2015/07/15/sleep-brain-emotions_n_7801726.html
There are all kinds of benefits from getting a good nights sleep. It can help us live longer, lower the risks of having a stroke or heart disease, or even spur our minds to be more creative.
But what about memory?
Shai Marcu teamed up with TED-Ed to make a video that sheds light on the mistaken idea that sleep is lost time or just a way to rest when all our work is done.
Sleep is a complex process, and there is a lot we don’t know or have wrong about it. The Huffington Post just published the article 3 Crazy Myths and Facts about Sleep that clears up several myths with some interesting truths about sleep.
Myth #1: Getting up at night for, say, 15 minutes just means I lose 15 minutes of sleep. Unfortunately, when life wakes you in the middle of the night, you lose way more than just those minutes out of bed. Waking to change your pajamas after a hot flash, answer the phone if you’re on call, or of course, comfort a crying baby is harder on us than we ever thought.
I’m surprised it took until 2014 to officially research this, but a first-of-a-kind study in the journal Sleep Medicine looked at the effects of sleep interruption over two nights. The first night, all the study participants slept for eight hours. Then researchers then measured their mood and ability to pay attention. Good so far.
A few nights later, the participants were split into two groups: half slept for only four hours, while the other half slept for eight hours but got woken up four times for 10 to 15 minutes at a stretch. So technically, they spent at least seven hours asleep — three hours longer than the four-hour group — just interspersed with awakenings. Then everyone’s mood and attention was measured again.
Anyone who’s ever had a newborn or been on call for work knows the results: the mood and attention of folks with interrupted sleep were just as bad as those who slept for only four hours. Both groups felt depressed, irritable, and had a hard time getting going. Plus, performance on the attention task got worse the longer they kept at it. Indeed, whoever coined the term “sleep like a baby” clearly never had one.
Myth #2: My brain holds my internal clock. Yes, the master clock, technically called the suprachiasmatic nucleus, or SCN, is in your brain. But almost all your organs, plus your fat and skeletal muscle, follow some sort of daily rhythm as well. Your gut, liver, and kidneys in particular have strong rhythms.
That’s why you feel so lousy when you have jet lag, and that’s why you often wake up groggy or feeling thrown off when you sleep in on the weekend: your whole body is affected.
And over the long term, throwing off your body clocks through overnight shift work, frequent jet lag, or just wacky sleep habits can put you at risk for some serious diseases, including breast cancer and colon cancer.
Circadian disruption is also thought to be a final push that sends some of those merely at risk over the edge. For example, only 30 percent of alcoholics develop liver disease. Why? Well, a 2013 study found that circadian disorganization, common in shift workers, increases “permeability of the intestinal epithelial barrier,” or in other words, a leaky gut. In the context of what the researchers called “injurious agents,” i.e., booze, a leaky gut puts folks at higher risk for liver inflammation and disease. They concluded that while there are many factors that determine whether someone with alcohol addiction develops liver disease, circadian disruption may be a swizzle stick that breaks the camel’s back.
Myth #3: If I can’t sleep, I should just wait it out… sleep will come. On the contrary, if you know you’ll be staring at the ceiling for awhile, get up. Yes, your bed is cozy and warm, but here’s why. Much like you probably associate biting into a lemon with puckered lips and Pavlov’s dog associated the bell with food, thereby salivating, you want to associate your bed with one thing: sleep (well okay, two things: I’ll let you guess the other).
When you lie in bed for more than about 15 or 20 minutes without sleeping, you start to associate your bed with wakefulness. And when you watch TV or fool around on Pinterest in bed when you can’t sleep, those too become associations with bed.
With time, bed could mean sleep, or it could also mean CSI, preschool science project pinboards, or planning your day in your head. Yes, even thinking and worrying qualify as activities you don’t want to do in bed.
So what to do? You can still do all these things, just don’t do them in bed. Get them done before you head to bed, and if you can’t sleep after 15 to 20 minutes, get up and do something non-stimulating like reading (on paper, not a tablet!) until you feel sleepy. Then try again. If you still can’t sleep, rinse and repeat: get up again to avoid associating the bed with anything but sleep and sex.
This is what behavioral psychologists call stimulus control and it’s the most effective way to combat chronic insomnia. It may take a week or two, but it’s been shown to break the bad habits that maintain insomnia. Before you know it, you’ll be so good at sleeping you’ll do it with your eyes closed!
For the full article click HERE.
You may think your body just shuts down when you sleep. However, your body goes through an amazing and complex process. As you go through the four stages of sleep each night, your body triggers processes that help you achieve that rested and healthy feeling the next morning.
Here’s a graphic from the Huffington Post that shows each stage of the sleep cycle and the effects that being in that stage have on your body.
For more information on the the cycles and their effects, check out the full article, Your Body Does Incredible Things When You Aren’t Awake.
So be sure to rest up and get your ZZZs!
Teens of this generation are generally getting less sleep than those of previous generations. What could be the reasoning behind this trend?
According to a study performed at Uni Research Health in Norway, the culprit could be the hours a day teens spend using electronic devices. The study was based on data gathered from 10,000 16- to 19-year-old boys and girls, who were asked about their daily quantity of screen time as well as their sleeping habits.
The findings were that those who used an electronic device for over four hours a day had a 49% higher risk of taking longer than an hour to fall asleep. Those who exceeded two hours of screen viewing per day were more likely to toss and turn before falling into a deep sleep. Teens who used multiple devices throughout the day were more likely to get less than five hours of sleep per night.
The reasoning behind this might be linked to the screen light, which may impact sleep hormone production. It could also be related to the social communication aspect, such as anticipating a response from a friend.
An easy way to fix this problem would be to treat electronic devices like any other stimulant (such as caffeine) and limit their use before bedtime and just in general. If the devices are not used while in bed, the body and mind won’t associate the bedroom with wakefulness, and could thus obtain better sleep.
For more information about how electronic devices impact teen sleep, read this article by Bill Briggs from NBC News: http://www.nbcnews.com/health/health-news/zombieland-tech-wrecking-sleep-scores-teens-study-n298901
We have said it once and we will say it again, sleep is important! But many people are still not getting enough good sleep every night and are, in fact, sleep deprived. Here are some simple ways to improve your nights sleep.
Length of Sleep
It can be easy to convince yourself that the length of time you sleep is not that important. However, it is essential to your health, performance, and recovery. It is important to get a full night of sleep each night to perform your best during the day.
Importance of the Sleep Phases
There are different phases of sleep, two of which are very important in determining the quality of your sleep: slow-wave sleep (deep sleep) and REM sleep. The human body is pretty amazing, as it will manage the length of time you stay in each cycle. The time you spend in each cycle will adjust automatically based on what your body needs and the total length of time you are sleeping.
A way to ensure you are getting enough zzz’s and enough time in those sleep phases is to go to bed at a decent time. Give yourself extra time to relax and fall asleep by making your bedtime a little earlier, if needed. Consistency is great too if you go to bed at the same time every night it’s easier for your body to develop good sleep habits.
Keep distractions out of the bedroom. Make your bed about sleeping, not watching TV or playing on your phone, tablet, or computer. Creating a restful environment will help your body relax and make falling asleep a little easier.
Take these tips and enjoy a restful night’s sleep.
Our brains account for only 2% of our body’s mass, yet they use approximately a quarter of our entire energy supply. How does the brain receive and then expel the vital nutrients needed for all that energy? New research suggests that sleep has some amazing impacts on the brain. This Ted Talks video features Jeff Iliff, a neuroscientist, who explores the unique functions of the brain during sleep.