Recent Blog Articles

Harvard Health Blog

What is COVID-19 brain fog — and how can you clear it?

March 8, 2021


As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles. No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.


Rick Ricketson
March 15, 2021

My girlfriend and I are both 66. I did have moderately severe infection with SARS-CoV-2 back in November 2020. Luckily, she ahas tested negative by PCR, rapid Ag, and CoV-2 Abs. She and I both went through the two-dose Pfizer schedule. As expected, I had increased residual cognitive dysfunction and the recurrent rash (surface glycoprotein hypersensitivity). She, however, had never tested positive and now stated tonight she feels “exhausted and mentally fatigued” after her second dose. Is there evidence of frontal lobe and/or hypothalamic/pituitary axis dysfunction occurring after COVID-19 or the surface glycoprotein? Pandemic isolation fatigue?

Commenting has been closed for this post.

You might also be interested in…

A Guide to Cognitive Fitness

In this Special Health Report, Harvard Medical School doctors share a six-step program that can yield important and lasting results. Together these “super 6” can strengthen your intellectual prowess, promote your powers of recall, and protect the brain-based skills that are essential for full, rewarding, and independent living. From simple and specific changes in eating to ways to challenge your brain, this is guidance that will pay dividends for you and your future.

Read More

Free Healthbeat Signup

Get the latest in health news delivered to your inbox!

Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE gift.

The Best Diets for Cognitive Fitness, is yours absolutely FREE when you sign up to receive Health Alerts from Harvard Medical School

Sign up to get tips for living a healthy lifestyle, with ways to fight inflammation and improve cognitive health, plus the latest advances in preventative medicine, diet and exercise, pain relief, blood pressure and cholesterol management, and more.

Harvard Health Publishing Logo

Health Alerts from Harvard Medical School

Get helpful tips and guidance for everything from fighting inflammation to finding the best diets for weight loss...from exercises to build a stronger core to advice on treating cataracts. PLUS, the latest news on medical advances and breakthroughs from Harvard Medical School experts.

BONUS! Sign up now and
get a FREE copy of the
Best Diets for Cognitive Fitness

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of the Best Diets for Cognitive Fitness.