'Yawning' Has 'Cooling' Effects on the Brain

'Yawning' is not just a sign of one feeling sleepy, but also has a cooling effect on the brain, a new study revealed.

According to Psychologist Andrew Gallup of SUNY College at Oneonta, USA, yawning frequencies of people vary with temperature of the season and it subsequently functions to keep the brain temperature balanced and in optimal homeostasis.

Yawning may be a Sign of Love!
A yawn may actually be a sign of love! The contagious nature of yawns can actually reveal a lot about a relationship.

Sleep cycles, cortical arousal and stress are all associated with fluctuations in brain temperature and it can also be easily manipulated by ambient temperature variation, since exchange with cool ambient air temperature may facilitate lowering brain temperature.

Results showed that in Vienna people yawned more in summer than in winter, whereas in Arizona people yawned more in winter than in summer.

Lead author Jorg Massen explains that where yawning functions to cool the brain, yawning is not functional when ambient temperatures are as hot as the body, and may not be necessary or may even have harmful consequences when it is freezing outside.

Yawning is Contagious: from the Master to the Pet
A new study has found that similar to human beings; pet dogs also copy the yawns of their owners in a show of empathy.

The study is published in Physiology and Behavior.

Source-ANI

Yawning Contagiously Depends on Whether You Know the Person Who Triggers It
A new study published in the journal PLoS One suggests that yawning could be contagious depending on how well you know the person