Music The Yawn-O-Meter (How Long Can You Last?) by DDF - March 12, 2014 0 Source Tags: Always tired, asapscience, Bed, Bedtime, biology, Can't sleep, Can't stop yawning, Challenge, contagious, Contagious Yawning, contest, counter, Exhausted, How is yawning contagious, insomnia, interactive, People yawning, science, sleep, Sleep Apnea, Sleep deprivation, Sleeping, Sleepy, Tired, White Backdrop, Yawn, Yawn counter, Yawn Meter, Yawn-O-Meter, Yawning, Yawning challenge, Yawning Game, Yawns
