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Study Finds Sleep-Deprived People Can’t Read Facial Expressions

Study Finds Sleep-Deprived People Can’t Read Facial Expressions

A recent study shows that the lack of sleep can affect the way you perceive people’s emotions, so if you’re starting to feel like the world is against you, it may be time to clock in some zzz’s.

It’s time to stop stretching your waking hours to accommodate too many things in your career and social calendar. Adding to the many reasons why you shouldn’t scrimp on sleep, a recent study published in the Journal of Neuroscience shows that the lack of sleep curtails our ability to read facial expressions. This means that without proper sleep, our brain is not able to properly decipher the moods of people around us, making interaction and decisions based on our impressions more difficult.

Researcher Matthew Walker, a professor of psychology and neuroscience at UC Berkeley, explains:

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“The better the quality of dream sleep, the more accurate the brain and body was at differentiating between facial expressions”.

The Brain – Heart Disconnect

The experiment comprised of 18 healthy young adults who were asked to viewed 70 facial expressions that ranged from friendly to threatening. The test showed that there was a huge difference in the way their brain reacted to seeing the facial reactions after a full night of sleep, and then later after 24 hours of being awake.

The researchers monitored the brain activity and heart rate of the participants in both scenarios. The results show that without sleep, the brain is less able to stimulate the anterior insula and the anterior cingulate cortex, its emotion-sensing regions. They also found that when sleep deprived, the brain is unable to send distress signals to the heart, creating a different physical response to what would normally be experienced during emotional situations. Participants who weren’t able to get a full night’s rest were interpreting most facial reactions, including friendly and neutral ones, as threatening and negative emotions instead.

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Wonans-Hands-With-Jewelry-Typing-On-Laptop-Sitting-On-A-Bed
    Close that laptop and hit the sack!

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    Walker finds this as a major cause of concern as he relays:

    “Two-thirds of people in the developed nations fail to get sufficient sleep”.

    This is an alarming finding since sleep deprivation is a common phenomenon, and it is not uncommon for people to consider sleep as a lesser priority to their deadlines and social commitments. Consider how this affects you on a daily basis. The less sleep you get, the less able you will be to properly interact and communicate with the people around you. Our ability to read expressions properly allows us to form our impressions and judgement of people, which in turn results to how we react in various situations. This over estimation of threat caused by the lack of sleep can cause you to react to the most neutral of situations as a cause of emotional concern and stress. Next time you’re sleep deprived and feeling paranoid that people are giving you a stink eye, it might actually all just be in your head.

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    This poses a more significant level of threat to individuals with jobs that require quick response to highly stressful situations but are prone to sleep-deprivation. These are the people who are expected to make important decisions based on first impressions and intuition. The study lead author Andrea Goldstein-Piekarski, a postdoctoral fellow at Stanford University (who has been working on the study since he was a Ph.D. student at UC Berkeley), notes:

    “Consider the implications for students pulling all-nighters, emergency-room medical staff, military fighters in war zones and police officers on graveyard shifts”.

    We have been told time and again that sleep is an important factor to attain complete physical, mental, and emotional wellness. Understand that the harm of sleep deprivation is a very real thing. If you or your loved ones have been getting less sleep than recommended, it is time to make a change. Save yourself from awkward situations and poorly calculated decisions. Turn off the lights, pry your eyes away from your phone, and tuck yourself in. A conscious effort to snooze off as scheduled can help your mind and body function like a well-oiled machine.

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    Featured photo credit: Ryan McGuire via stocksnap.io

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    Last Updated on November 19, 2019

    20 Time Management Tips to Super Boost Your Productivity

    20 Time Management Tips to Super Boost Your Productivity

    Are you usually punctual or late? Do you finish things within the time you stipulate? Do you hand in your reports/work on time? Are you able to accomplish what you want to do before deadlines? Are you a good time manager?

    If your answer is “no” to any of the questions above, that means you’re not managing your time as well as you want. Here are 20 time management tips to help you manage time better:

    1. Create a Daily Plan

    Plan your day before it unfolds. Do it in the morning or even better, the night before you sleep. The plan gives you a good overview of how the day will pan out. That way, you don’t get caught off guard. Your job for the day is to stick to the plan as best as possible.

    2. Peg a Time Limit to Each Task

    Be clear that you need to finish X task by 10am, Y task by 3pm, and Z item by 5:30pm. This prevents your work from dragging on and eating into time reserved for other activities.

    3. Use a Calendar

    Having a calendar is the most fundamental step to managing your daily activities. If you use outlook or lotus notes, calendar come as part of your mailing software.

    I use it. It’s even better if you can sync your calendar to your mobile phone and other hardwares you use – that way, you can access your schedule no matter where you are. Here’re the 10 Best Calendar Apps to Stay on Track .

    Find out more tips about how to use calendar for better time management here: How to Use a Calendar to Create Time and Space

    4. Use an Organizer

    An organizer helps you to be on top of everything in your life. It’s your central tool to organize information, to-do lists, projects, and other miscellaneous items.

    These Top 15 Time Management Apps and Tools can help you organize better, pick one that fits your needs.

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    5. Know Your Deadlines

    When do you need to finish your tasks? Mark the deadlines out clearly in your calendar and organizer so you know when you need to finish them.

    But make sure you don’t make these 10 Common Mistakes When Setting Deadlines.

    6. Learn to Say “No”

    Don’t take on more than you can handle. For the distractions that come in when you’re doing other things, give a firm no. Or defer it to a later period.

    Leo Babauta, the founder of Zen Habits has some great insights on how to say no: The Gentle Art of Saying No

    7. Target to Be Early

    When you target to be on time, you’ll either be on time or late. Most of the times you’ll be late. However, if you target to be early, you’ll most likely be on time.

    For appointments, strive to be early. For your deadlines, submit them earlier than required.

    Learn from these tips about how to prepare yourself to be early, instead of just in time.

    8. Time Box Your Activities

    This means restricting your work to X amount of time. Why time boxing is good for you? Here’re 10 reasons why you should start time-boxing.

    You can also read more about how to do time boxing here: #5 of 13 Strategies To Jumpstart Your Productivity.

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    9. Have a Clock Visibly Placed Before You

    Sometimes we are so engrossed in our work that we lose track of time. Having a huge clock in front of you will keep you aware of the time at the moment.

    10. Set Reminders 15 Minutes Before

    Most calendars have a reminder function. If you have an important meeting to attend, set that alarm 15 minutes before.

    You can learn more about how reminders help you remember everything in this article: The Importance of Reminders (And How to Make a Reminder That Works)

    11. Focus

    Are you multi-tasking so much that you’re just not getting anything done? If so, focus on just one key task at one time. Multitasking is bad for you.

    Close off all the applications you aren’t using. Close off the tabs in your browser that are taking away your attention. Focus solely on what you’re doing. You’ll be more efficient that way.

    Lifehack’s CEO has written a definitive guide on how to focus, learn the tips: How to Focus and Maximize Your Productivity (the Definitive Guide)

    12. Block out Distractions

    What’s distracting you in your work? Instant messages? Phone ringing? Text messages popping in?

    I hardly ever use chat nowadays. The only times when I log on is when I’m not intending to do any work. Otherwise it gets very distracting.

    When I’m doing important work, I also switch off my phone. Calls during this time are recorded and I contact them afterward if it’s something important. This helps me concentrate better.

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    Find more tips on how to minimize distractions to achieve more in How to Minimize Distraction to Get Things Done

    13. Track Your Time Spent

    When you start to track your time, you’re more aware of how you spend your time. For example, you can set a simple countdown timer to make sure that you finish a task within a period of time, say 30 minutes or 1 hour. The time pressure can push you to stay focused and work more efficiently.

    You can find more time tracking apps here and pick one that works for you.

    14. Don’t Fuss About Unimportant Details

    You’re never get everything done in exactly the way you want. Trying to do so is being ineffective.

    Trying to be perfect does you more harm than good, learn here about how perfectionism kills your productivity and how to ditch the perfectionism mindset.

    15. Prioritize

    Since you can’t do everything, learn to prioritize the important and let go of the rest.

    Apply the 80/20 principle which is a key principle in prioritization. You can also take up this technique to prioritize everything on your plate: How to Prioritize Right in 10 Minutes and Work 10X Faster

    16. Delegate

    If there are things that can be better done by others or things that are not so important, consider delegating. This takes a load off and you can focus on the important tasks.

    When you delegate some of your work, you free up your time and achieve more. Learn about how to effectively delegate works in this guide: How to Delegate Work (the Definitive Guide for Successful Leaders)

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    17. Batch Similar Tasks Together

    For related work, batch them together.

    For example, my work can be categorized into these core groups:

    1. writing (articles, my upcoming book)
    2. coaching
    3. workshop development
    4. business development
    5. administrative

    I batch all the related tasks together so there’s synergy. If I need to make calls, I allocate a time slot to make all my calls. It really streamlines the process.

    18. Eliminate Your Time Wasters

    What takes your time away your work? Facebook? Twitter? Email checking? Stop checking them so often.

    One thing you can do is make it hard to check them – remove them from your browser quick links / bookmarks and stuff them in a hard to access bookmarks folder. Replace your browser bookmarks with important work-related sites.

    While you’ll still checking FB/Twitter no doubt, you’ll find it’s a lower frequency than before.

    19. Cut off When You Need To

    The number one reason why things overrun is because you don’t cut off when you have to.

    Don’t be afraid to intercept in meetings or draw a line to cut-off. Otherwise, there’s never going to be an end and you’ll just eat into the time for later.

    20. Leave Buffer Time In-Between

    Don’t pack everything closely together. Leave a 5-10 minute buffer time in between each tasks. This helps you wrap up the previous task and start off on the next one.

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    Featured photo credit: Unsplash via unsplash.com

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