Are yawns and hiccups pscyhosomatically contagious or are they just independent reflexes?
I've always been told growing up, "yawns are contagious" or "you gave your hiccups to me." Is there any truth to yawns and hiccups be pscyhosomatically contagious? As in our body subconsciously sees a yawn and mimics it because the brain needs oxygen and yawns bring oxygen???
But for hiccipus... I don't understand. I know its a reflex of the diaphragm, but I don't know why suddenly our body would do that if we weren't eating or drinking. What benefits are there to hiccuping?