Gupta Sharat, Mittal Shallu
Department of Physiology, Gian Sagar Medical College, Ramnagar, Patiala, India.
Int J Appl Basic Med Res. 2013 Jan;3(1):11-5. doi: 10.4103/2229-516X.112230.
Although yawning is a commonly witnessed human behavior, yet it has not been taught in much detail in medical schools because, until the date, no particular physiological significance has been associated with it. It is characterized by opening up of mouth which is accompanied by a long inspiration, with a brief interruption of ventilation and followed by a short expiration. Since time immemorial, yawning has been associated with drowsiness and boredom. However, this age old belief is all set to change as the results of some newer studies have pointed out that yawning might be a way by which our body is trying to accomplish some more meaningful goals. In this review, we have tried to put together some of the important functions that have been proposed by a few authors, with the hope that this article will stimulate the interest of newer researchers in this hitherto unexplored field.
尽管打哈欠是一种常见的人类行为，但在医学院校中并未对其进行详细讲解，因为截至目前，尚未发现其具有特定的生理意义。打哈欠的特征是嘴巴张开，同时伴有一次长时间的吸气，呼吸会短暂中断，随后是一次短暂的呼气。自古以来，打哈欠就与困倦和无聊联系在一起。然而，随着一些最新研究结果表明打哈欠可能是我们身体试图实现一些更有意义目标的一种方式，这种由来已久的观念即将改变。在这篇综述中，我们试图汇总一些作者提出的重要功能，希望本文能激发新研究人员对这个迄今为止尚未探索领域的兴趣。
