The mystery of yawns revealed

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Did you know that yawning strengthens bonds especially as it is contagious? Well, this is scientific fact! Psychologists and medical scientists have joined forces to study the link between contagious yawning and emotional bonds. As a result, they have found that when an individual yawns, its closer ones tend to catch it first. In addition to this, scientists have shown that yawn contagion dominates among people who are more relaxed. Yet, yawning can also be a sign of boredome, fatigue and stress. Although that these findings remain unclear, scientists have advanced that the aspect of yawning is well-known throughout the whole globe. It is essential to note that yawn-catching has evolved across time in the form of emotional communication. Psychologists and psychiatrists have put forward facts which demonstrate that yawn contagion may be a way for social groups to unconsciously communicate and coordinate activities...