Why not fly when you have a cold?
Let’s take a closer look.
While cruising at an altitude of more than 30,000 feet, the low air pressure and low temperatures of minus 40 degrees are lethal.
If you are exposed to the cruising altitude of a commercial airliner, which is more than 30,000 feet above sea level, your body temperature is enough to make your body fluids boil, which is quite scary.
When we take the plane, we can read the newspaper at ease and watch the clouds pass by the window without any discomfort, because the air conditioning system of the plane constantly pressurizes the cabin.
The air pressure we feel is actually just over 6,000 feet, which is about the same altitude as Kunming, so the human body doesn’t feel uncomfortable.
In the case of good ventilation of the eustachian tube, through the adjustment of the eustachian tube and artificial air pumping action, can maintain the balance of pressure inside and outside the tympanic membrane, will not cause harm.
If had a cold, eustachian tubes are likely not normal ventilation, the pressure of the air in the eardrum can’t changes over pressure of the outside world, tympanic membrane when cruising or within six thousand feet of air pressure, and within 20 minutes outside pressure to increase to one hundred and ninety-eight feet, so the plane began to fall, will have ear bilges feeling, and as the lower the height of the aircraft,
The lower the cabin height, the more intense the feeling of ear swelling.
In addition to ear distension, there may also be a sense of plugging in the ear, tinnitus, ear pain, hearing loss, vertigo and other symptoms. If air pressure damage is caused, the injury to the middle ear cavity is called aero-otitis media in aviation medicine.
The severity of the examination is different. It may be manifested as tympanic congestion and invagination, tympanic effusion, tympanic haemorrhage, and even tympanic membrane rupture.
Sleeping passengers, coma patients are also prone to aviation otitis media.
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