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Portal:Cardiovascular system/Selected article/2
From MEpedia, a crowd-sourced encyclopedia of ME and CFS science and history
Postural orthostatic tachycardia syndrome (POTS) refers to a group of conditions that cause tachycardia (a very rapid increase in heartbeat), a lightheaded feeling and fainting when a person changes their posture from lying down to standing upright. (more...)
