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