Nicole Spencer, 24, a medical student who suffers from Postural Orthostatic Tachycardia Syndrome (POTS), chats with her mom, Denise Spencer, 60, at her parents' house in Long Island, New York, U.S. May 21, 2022. Denise is worried that her daughter won't be able to fulfil her dream of becoming a doctor, due to her health condition. REUTERS/Magali Druscovich