According to the CDC, at this time there is limited data about the long-term effects of COVID-19. Anyone who has been infected with the COVID-19 virus can experience post-COVID conditions. Some people who have been diagnosed with COVID-19 experience long-term symptoms or effects, commonly referred as long COVID or long haul COVID.⁶ These symptoms, which lasts for more than 4 weeks, range from difficulty breathing to brain fog (difficulty thinking or concentrating) to changes in smell and taste. Fatigue or tiredness that interferes with daily life is also a potential long-term effect. While there is no test to diagnose long COVID or post-COVID fatigue, this test can provide information about critical health measures that may be contributing to your fatigue.