The debilitating brain fog often experienced by people with long COVID may stem from blood clots, new research suggests.

Long COVID describes myriad symptoms that linger for weeks to years after a COVID-19 infection. Some people with the condition experience problems with blood flow and lung capacity, which have been linked to tiny, abnormal blood clots. Researchers have suggested that blood clots may also drive neurological symptoms of long COVID, like brain fog, which can disrupt people’s ability to focus, remember and execute tasks. 

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