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Brain Fog Test

20 Questions
3 Minutes

Are You Experiencing Brain Fog?

Not uncommonly, in the aftermath of a viral infection or in the course of receiving chemotherapy, people feel a mental slowing and experience confusion that is hard to describe but is summed up in the term “brain fog.” The condition can last for weeks or months, sometimes years, but usually resolves.

Using the key below, answer the questions based on how often each of the statements applies to you.

Never
Rarely
Sometimes
Frequently
Always
1. It is easy for me to maintain concentration.
Rarely
Always
2. I lose my train of thought in the middle of a sentence.
Rarely
Always
3. I can walk into another room and forget why I went there.
Rarely
Always
4. I find that doing ordinary tasks seems unusually challenging.
Rarely
Always
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5. I often feel confused by things that once seemed clear.
Rarely
Always
6. I find it easy to express myself.
Rarely
Always
7. I struggle finding the right words in a conversation.
Rarely
Always
8. I forget things that I once knew.
Rarely
Always
9. My thoughts can evaporate when I'm in the middle of saying something.
Rarely
Always
10. I have trouble keeping up with things happening around me.
Rarely
Always
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11. I find multitasking impossible.
Rarely
Always
12. I get frustrated easily.
Rarely
Always
13. I often feel that I have no mental energy.
Rarely
Always
14. My thoughts can feel like they are in slow motion.
Rarely
Always
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15. I experience mental exhaustion even after a full night's sleep.
Rarely
Always
16. I feel like I am in a mental haze when I have to solve a problem.
Rarely
Always
17. Some days it feels as if my brain is just not working.
Rarely
Always
18. I find it taxing to make even simple decisions.
Rarely
Always
19. I have no trouble finishing tasks I start.
Rarely
Always
20. Some days I have more problems with memory than on other days.
Rarely
Always
Psychology Today's online self-tests are intended for informational purposes only and are not diagnostic tools. Psychology Today does not capture or store personally identifiable information, and your identity cannot be determined from your responses. Aggregated self-test responses are stored to improve the tests and provide performance comparisons. Psychology Today uses third party cookies such as Google Analytics to collect visitor data on this page without sharing any personal data, ensuring your identity cannot be determined from your visit. There are no advertising partners included on these self-test pages. If you wish to remove cookies from this site or opt out of data sharing, please click 'Do not share or sell my personal information' below. For a reliable medical diagnosis, please consult a professional.

Who Is This Brain Fog Test For?

This test is for anyone who is concerned about mental slowing and confusion, especially in the aftermath of a viral infection. It is designed for adults and is not intended to be diagnostic. 

We value your privacy - see how we protect the info you provide when you take this test.

Get Help for Brain Fog Issues

If you have difficulty summoning mental energy or experience confusion about things that were once clear, seeking the help of a therapist can be beneficial. Find a professional near you in the Psychology Today Therapy Directory.

Reference

Loftus, Mary. Lost in a Brain Fog. Emory Magazine, Summer 2023.

Wong, A. C. et al. (2023). Serotonin reduction in post-acute sequelae of viral infection. Cell, 186(22), 4851–4867.e20. https://doi.org/10.1016/j.cell.2023.09.013.

Abigail Vanderheiden, Jeremy D. Hill, Xiaopinng Hang et al. (2024)  Vaccination reduces central nervous system IL-1β and memory deficits after COVID-19 in mice. Nature Immunology 25,  1158–1171.

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