Why Do We Yawn? What Makes Us Yawn?

Why Do we Yawn ? Why is Yawning Contagious ? Yawwwwwnnn!!! Hey Don’t sleep off !! Aren’t you eager to know why & when do we end up yawning? Watch “why do we yawn ?“ video & we are sure the next time you yawn you’ll know why it’s happening. Won’t that be exciting? So watch it now!! All Voices: Tulsi Kumar ツ --------------------------------------------------------------------- (◕‿◕✿) Join our KIDS HUT Family here: - ☛ SUSCRIBE us: ☛ Like us: ht