Postural Orthostatic Tachycardia Syndrome

Postural orthostatic tachycardia syndrome (POTS) is a disorder of the autonomic nervous system, characterized by excessive increases in heart rate and low blood pressure on standing. It is also called postural orthostasis, orthostatic intolerance, or OI. The name of this condition puts a lot of emphasis on the two most common symptoms, which are orthostatic intolerance and tachycardia. Orthostasis can be defined as standing up or taking physical exertion with the heart rate increasing significan