CALLING ALL CURIOUS PEOPLE: THE REASON WHY WE YAWN, AND WHY IT IS CONTAGEOUS.
IT IS DUE TO HUMAN INSTICT. IT IS THE MOTION OF OPENING YOUR MOUTH WIDE. WE DON'T REALISE WHY WE DO IT, BUT IT'S NATURAL.ITS A MIRROR NEURON REACTION. ITS THE UNCONSIOUS PART OF OUR BRAIN KICKING IN. THE REASON WHY PEOPLE YAWN IS BECAUSE SOMETIMES WITHOUT آپ KNOWING, YOUR LUNGS GET LAZY AND DONT TAKE IN ENOUGH AIR, PARTICULARLY WHEN YOUR TIRED. SO, THE YAWN TOPS آپ BACK UP AGAIN. WHEN YOU'RE BORED آپ DONT TAKE IN AS MUCH AIR AS آپ SHOULD, SO YOUR BREATHING SLOWS DOWN THEN, TOO. THAT IS WHY PEOPLE YAWN, AND WHAT IT MEANS.
it depends on if آپ have an emotional connection with the person who previously yawned. if آپ do, something in your brain sorta triggers and آپ yawn, almost like youre answering their call یا something like that.
Yawns are caused سے طرف کی too much carbon dioxide in the lungs. Seeing someone yawn, یا thinking about yawning (I'm yawning right now) I think makes آپ remember that you're breathing. Once آپ realise that, it can sometimes become harder to breath. ...To be honest, I have no idea what I'm writing here, I'm just putting up some random stuff that sounds vaguely scientific.