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A new brain-imaging study finds that participants who had even mild COVID-19 showed an average reduction in whole brain sizes. Kirstypargeter/iStock via Getty Images Plus

Even mild cases of COVID-19 can leave a mark on the brain, such as reductions in gray matter – a neuroscientist explains emerging research

New research offers insights into the brain after COVID-19 that may have implications for our understanding of long COVID-19 and how the disease affects our senses of taste and smell.
The new findings, although preliminary, are raising concerns about the potential long-term effects of COVID-19. Yuichiro Chino via Getty Images

Preliminary research finds that even mild cases of COVID-19 leave a mark on the brain – but it’s not yet clear how long it lasts

Reduced brain volume in people who have experienced COVID-19 resembles brain changes typically seen in older adults. The implications of these findings are not yet clear.
There are different types of memory and not all of them are related to Alzheimer’s disease. (Shutterstock)

What types of memories are forgotten in Alzheimer’s disease?

Alzheimer’s disease is often associated with a decline in episodic memory. Patients will complain that they can’t remember events they’ve experienced, conversations they’ve had, things they’ve done.
Your medical team should determine whether you have dementia or just normal memory loss due to aging. Fred Froese via Getty Images

Does forgetting a name or word mean that I have dementia?

September is Alzheimer’s Awareness Month and therefore a good time to talk about dementia. Alzheimer’s is the most common dementia, but there are others to be aware of, a gerontologist explains.
People with dementia experience a range of psychological symptoms and behaviour changes. From shutterstock.com

Why people with dementia don’t all behave the same

With an ageing population, dementia is becoming more and more prevalent. But what does dementia actually do to the brain to cause changes in behaviour?
A hallmark of Alzheimer’s disease is gradual deterioration of memory. Roman Kraft/Unsplash

What causes Alzheimer’s disease? What we know, don’t know and suspect

Alzheimer’s disease is the most common form of dementia, but treatments are still far from successful in clinical trials. Here is what we know about the disease, and what is yet to be uncovered.

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