Yawning is contagious. Thinking about this reflex is sufficient to trigger it!
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 […]