Letters

Yawn and open your ears
I read with interest your article on yawning (“Yawn,” SN: 5/7/11, p. 28). Over the years I have formulated a private theory on at least one of the reasons why we yawn and would like to share my speculations with your readership.

My insight essentially began when I noticed that immediately after yawning my hearing acuity noticeably improved (sometimes dramatically so) for at least a short period of time.