• Why
  • Why Do We Yawn? Why Is It Contagious?

    Yawning contagious statement is correct. Just to see, hear or think of yawning, can really make people yawned. Interestingly, not only through visual contagious yawn, yawn and sometimes even hear the sound, see the word yawn, yawn or think of the scene, will unconsciously follow yawn. Speaking of which, you yawning yet? Photo by Siobhan […]