(dә kah´stә) a syndrome characterized by palpitation, dyspnea, a sense of fatigue, fear of effort, and discomfort brought on by exercise or sometimes even slight effort; it is considered to be a manifestation of an anxiety disorder , with the physical symptoms being a reaction to something perceived to be dangerous or otherwise a threat to the person, causing autonomic responses or hyperventilation . Called also neurocirculatory asthenia .
