Why do people yawn when..?

Question

how come people yawn when other people around them yawn????

Answer 1

it is not necessarily that way...

Answer 2

people say that yawning is contagious and if you see someone yawn then they will

Answer 3

It has been proposed that there are such things as "mirror neurons". These are neurons in your frontal cortex that are designed to activate the same regions of the brain when you perceive someone doing an action, such as yawning. Mirror neurons are also part of the learning process, especially in language development. As a child, you have no way of understanding what other people are saying or speaking in a coherent language because you haven't learned it yet. These mirror neurons help the developing baby to basically imitate the sounds that the people around them make, trying to form words and eventually be able to communicate coherently with others.

Answer 4

Because it's a habit that humans do. When they see someone else doing it, its quite common for them to do it too. I hope  I helped!

Answer 5

People yawn beacause it's the brains way of telling us that it needs more O2 or we'll fall asleep.