A yawn is a reflex consisting of the simultaneous inhalation of air and the
stretching of the ... Approximately 20 physiological reasons for yawning have
been proposed by scholars, but there is litt...
Sep 23, 2011 ... People yawn more easily in cooler temperatures, supporting the idea ... Now a
series of experiments suggests a surprising reason for yawning.
Aug 19, 2014 ... Our tendency to yawn when other people yawn has long been incorrectly
explained as primarily an expression of a person's empathy.
Jun 10, 2013 ... But unlike sleep apnea or laptops in the bedroom, yawning is an aspect ...
Decker, but there's little proof to suggest it's the primary reason for yawning. ...
The study found that people were more likely to yawn during the winter, ...
If you yawn in class, you'll probably notice a few other people will start ... As this
theory goes, our bodies take in less oxygen because our breathing has slowed.
... big yawn, cover your mouth out of courtesy and watch to see how many people
... We know it's involuntary because we do it even before we're born: According ...
Nov 16, 2011 ... Some experts think this happens because yawning evolved as a means ... the
students responded as they watched videos of people yawning.
Oct 26, 2016 ... Yawning Excessively Information Including Symptoms, Diagnosis, Treatment,
Causes, Videos, Forums, and local community support.
Apr 14, 2014 ... Yawning may be the opposite of what we think—not a signal of ... We usually
think of yawning as a signal of sleepiness or boredom—one of the reasons ...
Provine demonstrated that people report yawning more frequently ...
May 29, 2014 ... There are several theories about the cause of yawning. ... "Often, for whatever
reason,” he said, “people are not comfortable verbalizing anger, ...