A talk from Dr. Maureen Hanson, Center Director, is now available on YouTube as part of Action for ME’s PRIME webinar series. In her presentation, “Molecular Signals of PEM,” Dr. Hanson shares findings from recent Center studies analyzing blood samples collected from ME/CFS patients and sedentary healthy controls before and after two consecutive maximal cardiopulmonary exercise tests. This research offers insight into the biological mechanisms underlying post-exertional malaise (PEM)—a hallmark and defining symptom of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Watch the talk on YouTube (starting at 2:12:40) to learn more about these important findings.