Previously Healthy Young Adults with ‘Long COVID’ Show Vascular Dysfunction in Limbs, but Not Brain

A first-of-its-kind study of young adults with positive COVID-19 tests from more than 4 weeks ago found that those who were still symptomatic (i.e., long-haulers) had impaired blood vessel function in their limbs, but not brains. Asymptotic participants had blood vessel function similar to controls.