Ever wondered why you yawn as soon as you see someone else yawning? Well, yawning is contagious and according to a US study, it happens when our brain gets heated due to continuous work. Our body temperature also drops when we yawn.
Previous studies have shown that when someone yawns around you, your mirror neurons system gets activated and you start yawning too. That is why it is always recommended not to yawn if you are sitting beside the driver's seat.
Also watch: Do you feel sleepy while meditating? Here’s why it may be happening