One of the common complaints expressed by COVID-19 long-haulers is a condition called “brain fog”, where you may feel sluggish, fuzzy, and not sharp. Discover more about brain fog and what you can do to help treat it.* 

What Does COVID-19 Brain Fog Feel Like? 

Brain fog usually includes memory issues and/or the inability to focus. Even without having COVID-19, we all experience temporary brain fog in certain situations, such as: 

• Jet-Lag
• Waking up Sleepy in the Middle of the Night
• Taking a Medication that Causes Drowsiness

For individuals with COVID-19, brain fog can occur often and, in some cases, be relentless. This can be detrimental to a person’s personal and professional well-being. 

How is COVID-19 Affecting the Brain?

While scientists are still researching the effects of the virus on the brain, it is clear that many individuals suffer from brain damage. In severe cases, COVID-19 can cause strokes, encephalitis (inflammation of the brain), and lack of oxygen to the brain. In individuals with chronic (long-term) brain fog, scientists believe it could be due to chronic inflammation of the brain. 

What Should I Do if I Have Brain Fog?

If you had COVID-19, and are experiencing brain fog often or all the time, it is important to inform your doctor. Your doctor can perform some tests and ensure no other unknown issues could be causing your brain fog. For many COVID-19 long-haulers, there is no underlying issue but an unfortunate side effect of the virus. 

What Might Help Clear the Brain Fog?

Some recommended activities that promote brain health include:

• Performing aerobic exercise for at least 30 minutes a day 
• Following a healthy diet with whole grains, fruits, and vegetables, such as the Mediterranean diet
• Avoiding alcohol and drugs
• Getting enough sleep every day
• Participating in social activities
• Reading a book
• Practicing mindfulness
• Listening to music

*Budson, A. (2021, March 8). What is COVID-19 brain fog — and how can you clear it?Harvard Health. https://www.health.harvard.edu/blog/what-is-covid-19-brain-fog-and-how-can-you-clear-it-2021030822076

Much about the novel coronavirus COVID-19 is still not fully understood. As research progresses and our knowledge of the virus increases, information about it can change rapidly. We strive to update all of our articles as quickly as possible, but some “lag” may occur between scientific developments and our revisions.