Definition
A yawn is an involuntary opening of the mouth accompanied by a deep breath. It's often associated with tiredness or boredom, but can also occur when transitioning between states of alertness. Think of it as your body's way of increasing oxygen intake or cooling down your brain. Unlike a sigh of relief, a yawn is a more dramatic and contagious event. It's like your body's reset button, urging you to perk up. Ever noticed how seeing someone else yawn makes you want to yawn too? π΄