A debilitating syndrome that causes an excessively rapid heartbeat on standing up, predominantly affects young well educated women, and blights their lives, because it is so poorly understood and inconsistently treated, reveals a small study published in the online journal BMJ Open.
Postural tachycardia syndrome, or PoTS for short, is a by-product of orthostatic intolerance - a disorder of the autonomic nervous system in which the circulatory and nervous system responses needed to compensate for the stress put on the body on standing upright, don't work properly.