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coronavirus attacks the brain

What Your Sense of Smell May Tell About Infection

NBA star Rudy Gobert, the first professional basketball player to test positive for the coronavirus, announced on Twitter that he’s experiencing some unusual side effects. On March 22, 2020, Gobert tweeted:

“Just to give you guys an update, loss of smell and taste is definitely one of the symptoms, haven’t been able to smell anything for the last 4 days. Anyone experiencing the same thing?”

In a New York Times report, physicians around the world are confirming that loss of smell (anosmia) and a diminished sense of taste (ageusia) are telltale symptoms of COVID-19.

What this means is that coronavirus attacks the brain.

Recent brain imaging scans reveal acute coronavirus encephalitis, which indicates an infection in the brain. According to the scientist who posted these images on Instagram, the concern that prompted this patient to seek an evaluation? Loss of smell.

The scientist wrote on Instagram:

“COVID-19 is generally associated with mild upper respiratory tract infections, although it has been shown to have neuroinvasive properties. In vivo studies have shown that it may infect neurons and cause encephalitis.”

Encephalitis is inflammation of the brain, which is most commonly caused by a viral infection. In the images in this post, the white parts show the brain’s reaction to an infection.

Sense of Smell and the Brain

The area of the brain involved with smell is called the olfactory cortex. It is situated near the brain’s memory centers. This is part of the reason why the sense of smell is intricately linked to memory. Your senses—smell, taste, sight, touch, and hearing—linked with emotion are the raw ingredients for making memories.  

Outside of COVID-19, loss of smell has been widely recognized as an early symptom of Alzheimer’s disease. Research shows that having trouble smelling peanut butter, lemon, strawberries or natural gas is associated with a higher incidence of significant memory problems. Scoring poorly on the University of Pennsylvania Smell Identification Test strongly predicts those who would be diagnosed with Alzheimer’s disease later in life.

To date, it remains unclear if the loss of smell some people are experiencing from coronavirus is temporary or if it will be long-lasting. And we don’t yet understand the long-term effects of COVID-19 on brain function. However, the infection’s impact on the brain and the potential for encephalitis are more reasons why we all need to take it very seriously.

If You Experience Loss of Smell or Taste

Physicians are reporting that in some cases, loss of smell or taste is the only symptom of COVID-19 in otherwise seemingly healthy individuals. What’s troublesome is that these people may be spreading the disease to others because they don’t realize they are infected with the virus.

Doctors are advising that if you are experiencing loss of smell—for example, the inability to detect your baby’s dirty diaper or to tell the scent of curry from cinnamon—it is best to self-isolate for 7 days to slow the spread of the virus.

At Amen Clinics, we offer comprehensive in-clinic services as well as remote therapy sessions to help our patients. Find out more by speaking to a specialist today at 888-288-9834. If all our specialists are busy helping others, you can also schedule a time to talk.

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  1. Susan Maass says:

    Please comment on loss of taste and smell that only lasted for one day ( no cold or flu).

    If zinc helps?

    Mother and grandmother lost taste at 72 and dementia started at 82. How genetic or can a brain warrior beat this potential loss

  2. Sarah says:

    Zinc does help boost the immune system. I often take a zinc lozenge at night when I feel a little run down. Also, allergies and sinus infections, clogged eustachian tubes can interfere with the sense of smell.


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