Yawning project

The role of physical effect of yawning on the interior spaces of the cranium that may affect the brain's environment.

brain temperature affect by the air flow..either generally or to the sinuses.
Also the effect on smelling sensation.

crude observations:
my cousin suffers frontal headache with excessive sleeping, he responded to quenolones which suggests an infection.
my father used to have more sleep while having -as far as i remember actually- chronic nasal problems.
some researches recently got proofs about the effect of temperature of the skull on yawning.

a simple experiment obstructing all the ostia of an experimental animal and observation of the sleeping hours

effect of direct invasive heating to the interior of the nasopharynx related areas.