Changes in heart rate when you move from laying down to sitting up (postural tachycardia syndrome).

Epidermal nerve fibre density in the neuropathic type of the postural tachycardia syndrome.

Melatonin reduces tachycardia in postural tachycardia syndrome: a randomized, crossover trial.

Postural Tachycardia Syndrome (PoTS) can be a life altering and debilitating chronic health condition.

It is also being prescribed 'off-label' for the postural tachycardia syndrome as well as complications resulting from Ehlers-Danlos Syndrome.

Postural tachycardia syndrome was coined in 1982 in a description of a patient who had postural tachycardia, but not orthostatic hypotension.

Symptoms include Postural Tachycardia Syndrome, gastrointestinal dysmotility, anhidrosis, bladder dysfunction, and Small fiber peripheral neuropathy.

"What Greg had sounded more like what we call POTS," or "postural tachycardia syndrome," a type of orthostatic intolerance, Raj says.

Based upon the results of an upright tilt-table test or a 10-minute standing test, eight patients had postural tachycardia syndrome, six had neurally mediated hypotension, and four had both.

The 22-year-old suffers from a condition known as Postural Tachycardia Syndrome (PoTS), which means that every time she stands up, her heart rate speeds up, causing her to pass out.

Postural orthostatic tachycardia syndrome (POTS, also known as postural tachycardia syndrome) is a condition in which a change from the supine position to an upright position causes an abnormally large increase in heart rate, called tachycardia.

In March 2015, she revealed that she had been diagnosed with the genetic condition Ehlers-Danlos syndrome in 2013 and had later been diagnosed with the associated secondary condition of postural tachycardia syndrome, which causes chronic migraines for which she is treated by having 32 injections in the head every 10-12 weeks.

Eccleston, 51, recorded a special video message for 14-year-old Daniel, who suffers from Ehlers-Danlos syndrome (EDS) and Postural tachycardia syndrome (POTS).