What is Brain Fog?

Whether you’re sick, suffering from lack of sleep, or maybe just not feeling on top of your game, brain fog can make even completing the simplest of tasks difficult. 

Learn more about brain fog: symptom, causes, and how to get rid of it so you can feel and perform your best. 

What is Brain Fog?

Used to describe a lack of mental clarity, inability to focus, or sluggishness, brain fog is not a medical condition, but it can be a symptom of other health conditions. 

What Does Brain Fog Feel Like?

How do you know if you have brain fog? What does brain fog feel like? 

If you have brain fog, you might experience:

  • Difficulty focusing
  • Headaches
  • Trouble putting thoughts together
  • General fatigue
  • Lack of motivation
  • Forgetfulness
  • Mental exhaustion
  • Irritability
  • Inability to concentrate
  • Trouble multitasking
  • Thinking more slowly than usual

What Causes Brain Fog?

In addition to there being a number of ways individuals experience brain fog, there are also several factors and health conditions that can cause and attribute to what causes brain fog, including: 

  • Lack of sleep
  • Depression
  • Dementia
  • Medication
  • Hormonal conditions
  • Chronic health conditions
  • And more

Three prevailing factors we’re going to dive into deeper include nutrient deficiencies, viral infections, and increased stress levels.

B12 Deficiency 

A lack of vitamin B12 can lead to depression, memory problems, and confusion. Fortunately, taking a vitamin B12 supplement can help improve brain fog, reduce stress, and boost mood by stabilizing overall brain function and elevating energy levels. 

Effect of COVID-19

As more and more research is coming out on COVID-19, many affected describe experiencing the “COVID brain fog.” Studies are looking into the correlation between inflammation in the brain caused by COVID-19, but the isolated pandemic quarantine conditions resulted in, for many, increased stress, anxiety, and depression. 

Stress & Anxiety

When experiencing the mental fuzziness or lack of clarity that comes with brain fog, it is important to note that these symptoms might be accompanied by or a symptom of anxiety and stress. Many brain fog factors and symptoms are intertwined. For example, depression can cause difficulty sleeping, which can lead to brain fog, or anxiety leads to brain fog, which leads to more anxiety, possibly accompanied by depression.  

How to Get Rid of Brain Fog

In addition to speaking with your doctor about your symptoms to help identify the cause of your brain fog, you can try these tips and tricks to get rid of brain fog. 


As you sleep, your body and brain work to clear out toxins and can help not only get rid of brain fog but also boost your immune system, improve memory, and improve your mood—because no one likes running on empty

Find Engaging Activities

Participating in new social, mentally stimulating activities can help improve your memory and mood. Giving yourself time to recharge and engage in something new like listening to music, taking a different route on your walk, or even switching the hand that holds your coffee in the morning can help stimulate your brain. 


Exercising regularly and staying physically active can help improve sleep, increase blood flow, and improve memory. Even a brisk walk will do the trick! 


In addition to exercising, try meditating! Meditation can help reduce stress while also relaxing your body and your brain. Plus, tapping into your own thoughts can help you more easily work through challenges as they come up throughout your day. 

Eat Well

Eating well and following a healthy diet can help improve thinking, boost energy, support memory, and assist overall brain health. It can be easy to turn to quick fixes when you’re stressed, even if they’re not the healthiest, but choosing fruits, nuts, vegetables, beans, whole grains, and lean proteins when you’re feeling the brain fog set in can help to keep you from feeling fatigued and fuzzy. 


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