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Mental Fatigue: What to Do When Your Brain Is Too Tired to Think Straight

https://doist.com/blog/mental-fatigue/

doist.com

Mental Fatigue: What to Do When Your Brain Is Too Tired to Think Straight
Identify the root causes of mental fatigue and take steps to manage, with strategies for sleep, excercise, and building your workday around energy levels.

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Describing mental fatigue

Describing mental fatigue

It is the feeling that your brain just won't function properly. People will describe it as brain fog. You can't concentrate, and simple tasks take too long. You find that the things you could do in a short time in the morning now take forever.

Mental fatigue can be acute or chronic. Acute fatigue can be relieved after a short period of rest. If allowed to continue, it can become chronic fatigue and eventually lead to burnout.

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Causes of mental fatigue

Contributing factors to mental fatigue are poor nutrition, lack of sleep, hormonal imbalances, or cognitive overload. Cognitive overload can take the following forms:

  • When you focus on a single task for an extended period of time.
  • When you spread your attention across too many things.
  • Worrying about tasks. It is as mentally taxing as doing the task.

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Give your brain high-quality fuel

Your brain is fuelled with the same food as your muscles. What you eat has an enormous impact on your cognitive functioning.

  • Cut down on refined sugars as it decreases alertness. Aim for sustained energy levels throughout the day.
  • Plan your meals in advance. If you wait until you're hungry, you're already low on energy and willpower and will reach for a quick energy boost in the form of sugar.
  • Don't skip breakfast. Without it, you may likely crash in the middle of the morning. Eat more eggs, yogurt, and oatmeal to sustain your energy levels until lunch.
  • Snack mid-morning and mid-afternoon to give your body consistent fuel.
  • Stay hydrated with water. Mild hydration can negatively impact cognitive performance.
  • Listen to your body to figure out what makes you feel best. The same nutrition advice won't work for everyone.

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Sleep is the most productive thing you do all day

The quality of life decreases when we don't get enough sleep. To improve your quality of sleep:

  • Keep it cool, dark, and quiet. A temperature between 65 and 72 degrees Fahrenheit (18-22 degrees celsius) is recommended.
  • No screens before bed. The blue light of screens interferes with your body clock.
  • Have a calming bedtime routine. Doing the same winding down routine before bed prepares your body and mind for the night.
  • Keep a consistent wake-up time. Your natural body clock is more aligned with the time you wake up than the time you fall asleep.
  • Skip coffee after noon. Caffeine has a half-life of 4 - 6 hours.

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Work with your ultradian rhythms

Your body has natural ebbs and flows in energy throughout the day. Those are your ultradian rhythms. They are driven by your hormone levels, metabolic processes, and cardiovascular functioning and affect your energy, mood, and cognitive functioning. They are unique to you.

These rhythms take the form of 90-minute peaks of energy followed by a 20-minute dip that repeats throughout the day. As the day progresses, the peaks get lower and lower. Plan your day to work with your ultradian rhythms. Take a week to note your energy levels throughout the day. Notice when your energy levels are highest and lowest.

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Take strategic breaks

Your energy levels will naturally decrease throughout the day, but you can recharge your batteries by taking breaks.

  • High performers work for fifty-two minutes, then take a seventeen-minute break.
  • Taking a five-minute walk every hour boost energy levels and sharpens focus, one study finds.
  • Social breaks are more effective at reducing stress and improving mood than cognitive breaks or nutrition breaks.
  • People who take short walks outdoors return with better moods.
  • Tech-free breaks increase vigor and reduce emotional exhaustion.
  • A 20-40 minute power nap in the afternoon has been shown to improve alertness and mood.

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Ways to lighten your mental load

  • Only touch things once. As soon as you reach for something, whether it's mail or a project that needs to be filed, do it immediately.
  • Set aside 2 - 3 specific time-blocks to process your emails.
  • Focus on one thing at a time.
  • Identify which decisions you can do with little thinking. Eat the same breakfast; keep the same exercise routine.
  • Learn to say no. More responsibilities will increase the mental load on your brain.

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Disconnect at the end of the workday

It is helpful to have a work shutdown ritual - a consistent series of tasks that tell your brain that it can stop thinking about work for the day:

  • Update and organize your to-do list. Your brain can stop thinking about the tasks knowing that you won't forget about them.
  • Schedule a commitment at the end of the day to put you out of work mode - a dinner with friends or a group fitness class.
  • Turn off all notifications from work apps on your phone or delete work apps from your phone.

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SIMILAR ARTICLES & IDEAS:

The Circadian Rhythm

The Circadian Rhythm
  • The circadian rhythm is what we call our body's masterclock. It is the timekeeper of the body which keeps the cells in our body running smoothly, helps fights against ch...

Healthy Circadian Rhythm

Healthy circadian rhythms rely on regularity and stability— for the timing of light, the timing of exercise, and the timing of meals.

Our bodies are accustomed to the exposure of light and darkness on a regular basis. The circadian rhythm is reset on a daily basis and it is the one that determines the healthiness of our cellular health and sleeping patterns.

The Impact of Circadian Rhythms to Our Health

  • We slowly deteriorate our health whenever we disrupt the natural cycle of our circadian rhythm. It becomes disrupted with every late nights, irregular meal times, and using our phones in the middle of the night.
  • Extreme circadian instability is what happens when we do not take care of our internal clock. It often leads to a bunch of chronic health problems such as impaired immune function, obesity, and some forms of cancer.
  • The key to reduce the risk of health problems, stability is needed.

2 more ideas

Keep in sync with your body’s natural sleep-wake cycle

  • Try to go to sleep and get up at the same time every day;
  • Avoid sleeping in, even on weekends;
  • Limit naps to 15 to 20 minutes in the early afternoon;

Melatonin

Is a naturally occurring hormone controlled by light exposure that helps regulate your sleep-wake cycle. 

Your brain secretes more melatonin when it’s dark, making you sleepy, and less when it’s light, making you more alert. 

However, many aspects of modern life can alter your body’s production of melatonin and shift your circadian rhythm

Influence exposure to ligh

During the day:

  • Expose yourself to bright sunlight in the morning. 
  • Spend more time outside during daylight. 
  • Let as much natural light into your home or workspace as possible.

At night:

  • Avoid bright screens within 1-2 hours of your bedtime.
  • Say no to late-night television.
  • Don’t read with backlit devices. 
  • When it’s time to sleep, make sure the room is dark.
  • Keep the lights down if you get up during the night.

Get More Sleep

Lack of sleep can result in you feeling lethargic, grumpy and tired. If you often feel this way, you may want to consider whether you’re getting enough sleep.

Try and aim for around 7 hour...

Reduce Stress

Feelings of stress can mean that you struggle to concentrate, experience racing thoughts, difficulty switching off and tiredness.

Strategies to improve your energy levels include taking some time for yourself to relax, reading or going for a walk.

Move More

One study found that sedentary people with persistent, unexplained fatigue decreased their tiredness by around 65% just by regularly participating in low-intensity cycling.

Get up and move your body like brisk walking or cycling to boost your energy levels.