Postural orthostatic tachycardia syndrome (POTS) is a condition that affects the autonomic nervous system, which regulates functions we don’t consciously control, such as heart rate, blood pressure, sweating, and body temperature. POTS is characterized by a specific group of symptoms that frequently include lightheadedness or fainting, accompanied by a rapid increase in heartbeat of more than 30 beats per minute, or a heart rate that exceeds 120 beats per minute, within 10 minutes of rising. The primary symptom of POTS is orthostatic intolerance (OI), which is a condition in which an excessively reduced volume of blood returns to the heart after an individual stands up from a lying down position. POTS can affect anyone at any age, but it mainly affects women between the ages of 15 to 50 years of age. The causes of POTS vary from person to person, and researchers don’t entirely understand the origins of this disorder. However, some people may develop POTS after experiencing significant illnesses, such as viral illnesses like mononucleosis or serious infections, pregnancy, physical trauma, such as a head injury, or surgery. People who have certain autoimmune conditions, such as Sjogren’s syndrome, lupus, and celiac disease, are also more likely to develop POTS. POTS can get better with changes to lifestyle, such as maintaining a consistent temperature, eating and drinking at regular times, and trying to manage stress. Treatments for POTS may include more water and salt intake, better and longer sleep, exercise, and medications.