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Researchers report new brain-scan evidence that long COVID may damage dopamine-releasing neurons, offering a possible biological explanation for the persistent fatigue, brain fog, low motivation, and slowed movement many patients experience. The findings point to disruption of the brain's dopamine system as a key driver of these lingering symptoms. The discovery, described in ScienceDaily, could open the door to new treatments targeting dopamine pathways for the millions of people still suffering from long COVID years after acute infection, an area where effective therapies have so far been limited.