Article Text
Editorial commentary
“One person yawning sets off everyone else”
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The precise role of yawning in human physiology remains unclear
Yawning is a stereotyped behaviour present in most mammals from rodents to humans and has been described since antiquity. Hippocrates considered yawning to be an exhaustion of the fumes preceding fever. Modern medicine did not pay much attention to it until the 1980s, when, with advances in neuropharmacology, yawning proved to be a valuable tool for the assessing dopaminergic activity and the pharmacological properties of new drugs. However, its precise role in human physiology is still unknown and its mechanisms remain unclear. The paper by Cattaneo et al (see page 98–100) reports two cases of pathological …