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: - bit.ly/1qsHVca ☛ SUSCRIBE us: bit.ly/1qsHVca ☛ Like us: www.facebook.com/kidshut ☛ Follow us: twitter.com/kids_hut ☛ Follow us: www.pinterest.com/kidshut ----------------------------------------------------------------------- "What makes us yawn" "why we yawn" "why do we yawn" "Science" "Asap SCIENCE" "Yawn" "Yawning" "Tired" "Sleep" "Sleeping" "Yawn-O-Meter" "Why is yawning contagious?" "Oxygen" "Lungs" "Brain" "Cool brain" "Brain temperature" "Exhaustion" "Kids learning series" "science videos" "kids" "learning" "children learning" "kids knowledge" "kids q&a" "kids questions" "learn and play" "science animation" "animation videos" "edutainment video" "education" "education videos" "tia" "tofu" "kids hut"