Respuesta :
Answer: Yawning is a way to communicate
that you are not listening. More of a burnt out feeling.
Explanation: When you are burnt out and tired you Yawn. most people also yawn when they skipped the 7-8 hours of sleep.
A yawn is characterized by a gaping of the mouth followed by a fast closure. In mammals, the gaping of the mouth is an intake of breath and a quicker exhale.
What Does Research show?
According to human research, persons who are more empathetic4 have a higher proclivity to Yawning is contagious. When you witness someone else yawn, the networks in your brain that are responsible for yawning activate. Empathy and social abilities are heightened. Is yawning contagious in dogs? In 2011, the U.K. Biologists looked for signs of infectious yawning between humans, as well as man's best friend Despite the fact that 5 of the 19 dogs analyzed yawned in reaction. The researchers were unable to verify that unfamiliar people's yawns were contagious.
The researchers discovered that dogs were more likely to yawn in response to a familiar person this time. They came to the conclusion that dogs can "catch" human yawns and that yawning is a social rather than a stress-related habit. In 2014, psychologists from the University of Nebraska investigated contagious yawning in shelter dogs.
For more information about Yawning refer to the link:
https://brainly.com/question/10715112