Faculty of Science Utrecht University
I wrote to the researcher:
Extremely fascinating! Thanks. Maybe, maybe..? Yawing could then be used as training for memory problems or related problems.
Is it known which animals yawn the most?? [ and also would that be in the wild or in captivity?]
What I do know is that yawning can tremendously reduce high blood pressure on the spot [for a short while] [ writing as an M.D]