Long COVID and the brain: Global study links infection to memory loss, higher dementia risk in seniors
Posted on: Wednesday, February 12th, 2025
Five years after the peak of the COVID-19 pandemic, scientists are uncovering the long-term effects of the virus on the brain. Between 10% and 35% of people experience long COVID, with symptoms lasting from weeks to months. Common symptoms include fatigue, memory issues, lightheadedness, and loss of smell or taste.
Research led by Gabriel A. de Erausquin, MD, PhD, and published in January 2025, shows that long COVID can cause cognitive impairment, especially in older adults. Factors like age, severity of infection, and loss of smell are linked to this impairment. The study found that older adults with severe COVID-19 and loss of smell had a higher risk of cognitive decline, including memory and language issues.
The findings highlight the need to prioritize brain health post-pandemic and understand how COVID-19 affects the brain to improve prevention and treatment of neurodegenerative conditions.
Read the full article at the UT Health San Antonio Newsroom.