... of theories that attempt to explain why animals and people yawn. ... to explain
the primary evolutionary reason for the yawn.
Sep 23, 2011 ... People yawn more easily in cooler temperatures, supporting the idea that ...
Gallup's theory predicts that colder outside air should cool the brain ...
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.
Sep 6, 2015 ... 8 reasons for excessive yawning you probably didn't know about. ... The study
also stated that people suffering from multiple sclerosis suffer ...
Jun 10, 2013 ... That open-mouthed yawn causes sinus walls “to expand and contract ... The
study found that people were more likely to yawn during the winter, ...
May 9, 2014 ... A new study suggests that you may not really be yawning because it's contagious
, or you're bored or tired.
Apr 14, 2014 ... Yawning may be the opposite of what we think—not a signal of ... signal of
sleepiness or boredom—one of the reasons Sasha Obama's yawn seemed ...
Provine demonstrated that people report yawning more frequently when ...
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.
Jun 5, 2016 ... Complete information about Excessive Yawning, including ... let The Analyst™
find what's wrong; learn what you should be doing right now ... If the reaction is
mild, these people may yawn, or feel apprehensive or restless.
Causes may include: Drowsiness or weariness; Disorders associated with
excessive daytime sleepiness; Vasovagal reaction (stimulation of a nerve called