Have you ever noticed your ears feeling blocked or hearing a “pop” while an airplane is taking off or landing? It’s a common experience for many travellers. Although it may feel uncomfortable, this sensation is usually a normal response to changes in air pressure.
THE SCIENCE OF THE POP
Our middle ear is connected to the back of the nose and throat by a small passage called the EUSTACHIAN TUBE. Its main function is to equalise the air pressure on both sides of the eardrum.
- THE PRESSURE DIFFERENTIAL: For optimal hearing, the middle ear needs to maintain the same pressure as the ambient environment. During rapid altitude changes, the cabin pressure fluctuates much faster than the air inside the middle ear can adjust.
- THE VACUUM EFFECT: As a plane descends, the cabin air pressure increases quickly. This creates a relative vacuum inside the middle ear, physically sucking the tympanic membrane instead. This stretching is what muffles sound and causes that uncomfortable pain.
- THE RELEASE: When we swallow, yawn, or chew, we activate the tensor veli palatini muscle, which temporarily forces the Eustachian tube open. This allows a sudden rush of air to enter the middle ear, instantly equalising the pressure and snapping the eardrum back into its normal flat position—creating that distinct “pop.”
CONCLUSION
Ultimately, that satisfying (and sometimes relieving) pop is our body’s brilliant pressure valve doing its job, protecting our eardrums from extreme atmospheric changes.
Do your ears usually pop during flights? What trick works best for you- chewing gum, swallowing, yawning, or something else? Share your experience in the comments!
MBH/PS
