Why Do We Yawn? What Makes Us Yawn?

Why Do We Yawn? What Makes Us Yawn? with tags what makes us yawn, why we yawn, why do we yawn, yawn-o-meter, why is yawning contagious?, science videos, science animation, why is yawning contagious, contagious yawning, why do i yawn, learn something new, that's a good question, why contagious yawning, kids hut rhymes, kids hut, yawning sound effect, yawning contagious, yawn science, what is yawn, yawn o meter, asapscience yawn o meter, yawn (symptom)

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 --------------------------------------------------------------------- ()Join our KIDS HUT Family here: - http://bit.ly/1qsHVca SUSCRIBE us: http://bit.ly/1qsHVca Like us: https://www.facebook.com/kidshut Follow us: https://twitter.com/kids_hut Follow us: http://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"