New research using brain scans shows that people with long-term symptoms after a COVID-19 infection do not show signs of widespread brain inflammation. Scientists had previously thought that inflammation in the brain played a major role in these persistent symptoms, but that appears not to be the case. This research puts forward a different explanation for the symptoms.
Instead of inflammation, the researchers found increased brain activity in certain areas associated with mood and emotions. These areas could therefore be overstimulated, which may contribute to symptoms such as fatigue, mood swings and concentration difficulties. This insight helps to better understand why some people continue to suffer from their symptoms for a longer period of time.
Brain inflammation normally means that the body reacts with a form of defence, which can cause damage. The absence of such inflammation means that long-term symptoms are probably not caused by physical damage to the brain, but rather by changes in the functioning of brain regions. This may lead to new treatment directions that focus on normalising brain activity.
For people dealing with persistent health issues after a viral infection such as COVID-19, this research offers hope. It highlights the importance of further research to find appropriate and effective ways to alleviate these symptoms. Understanding the underlying causes is a step forward in supporting a healthy life course.
This research is important because it provides insight into how our brains respond after illness, which can help in developing strategies for healthy ageing and maintaining brain health.
Source: Original article
