India, April 23 -- Yawning is a reflex action that not many of us think much about. However, its cause and effects are more than just a symptom of feeling sleepy. One of the less recognised effects of yawning is the sudden improvement in one's hearing abilities right afterwards.

Taking to Instagram on April 22, Dr Karan Rajan, a UK-based surgeon and health content creator, shared that the improved hearing sensation is not imaginary, and explained why that happens.

According to Dr Rajan, yawning resets the air pressure inside the eustachian tube and allows the eardrums to vibrate more effectively, thus leading us to better pick up auditory stimuli. The eustachian tube connects the middle ear to the throat and is normally closed.

In Dr R...