Here’s Why Yawning Is Contagious
Just one person doing it sets everyone off. But why is yawning contagious? Turns out, humans aren't the only animals with a case of the big yawns.
Are you ready to be mind-blown? This crazy collection of facts will have you thinking, “I can’t believe I didn’t know this!”
Just one person doing it sets everyone off. But why is yawning contagious? Turns out, humans aren't the only animals with a case of the big yawns.