POTS stands for postural orthostatic tachycardia syndrome, which is a disorder characterized by an abnormal increase in heart rate upon standing up. It is estimated that millions of people are living with POTS, and the number has doubled since the beginning of the pandemic. Some of the known triggers include pregnancy, surgery, or a viral illness, such as COVID-19. A subset of POTS patients also has a condition called myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS), which is characterized by post-exertional malaise (PEM)—a situation in which symptoms worsen after exercise. There is no cure for POTS, but some patients manage symptoms by increasing fluids and salt intake. Exercise can decrease POTS symptoms, by making the heart more efficient and encouraging the body to produce more blood. In POTS exercise protocols, patients start with cardio in a recumbent position, such as rowing, swimming, or a recumbent bike, which helps avoid triggering symptoms by avoiding an upright position. Patients also do strength-training, which helps return blood to the heart more efficiently.