After reading the article’s title, there is 80% of chance that you will yawn too. In reality, this reflex often linked to fatigue, boredom, stress or overwork,is contagious. The mere mention of yawning may be sufficient to cause it. Interestingly, this contagion has also been observed in chimpanzees.
However, the real cause of this contagious yawning has not yet been determined. Some studies have suggested that it was developed to keep animal groups alert, increasing oxygen in the brain to help them be ready for action. Other studies have suggested that yawning is associated with the regulation of body temperature.