Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 56. Chapters: Accessory nerve disorder, Anesthesia dolorosa, Anti-MAG peripheral neuropathy, Autonomic dysreflexia, Axillary nerve dysfunction, Axillary nerve palsy, Charcot-Marie-Tooth disease, CMV polyradiculomyelopathy, Congenital insensitivity to pain with anhidrosis, Diabetic neuropathy, Dysautonomia, Facial nerve paralysis, Familial dysautonomia, Hereditary sensory and autonomic neuropathy, Horner's syndrome, Multiple system atrophy, Nerve compression syndrome, Nerve injury, Orthostatic hypotension, Orthostatic intolerance, Piriformis syndrome, Plexopathy, Polyneuropathy, Postherpetic neuralgia, Postural orthostatic tachycardia syndrome, Primary autonomic failure, Pronator teres syndrome, Proximal diabetic neuropathy, Pudendal nerve entrapment, Pure autonomic failure, Radial neuropathy, Radiculopathy, Sciatica, Thoracic outlet syndrome, Ulnar neuropathy, Wartenberg's Syndrome, Winged scapula. Excerpt: Postural orthostatic tachycardia syndrome (POTS, also postural tachycardia syndrome) is a condition of dysautonomia, to be more specific orthostatic intolerance, in which a change from the supine position to an upright position causes an abnormally large increase in heart rate, called tachycardia. Several studies show a decrease in cerebral blood flow with systolic and diastolic cerebral blood flow (CBF) velocity decreased 44% and 60%, respectively. People with POTS have problems maintaining homeostasis when changing position, i.e. moving from one chair to another or reaching above their heads. Many also experience symptoms when stationary or even while lying down. Symptoms present in various degrees of severity depending on the individual. POTS can be severely debilitating. Some afflicted individuals are unable to attend school or work and for especially severe cases, they are completely incapacitated. The hallmark...