Mounting research shows that COVID-19 leaves its mark on the brain, including with significant drops in IQ scores
- Written by Ziyad Al-Aly, Chief of Research and Development, VA St. Louis Health Care System. Clinical Epidemiologist, Washington University in St. Louis

From the very early days of the pandemic, brain fogemerged as a significant health condition that many experience after COVID-19.
Brain fog is a colloquial term that describes a state of...