Factors that cause airplane sickness:
HIGH ALTITUDE: The brain swells with fluid and squeezes the blood brain barrier as air pressure and oxygen levels decrease at higher altitudes.
LOW HUMIDITY: Low humidity can dry out and inflame the mucous membrane lining your respiratory tract. When this natural barrier is no longer working properly, t increases your risk of colds, the flu, and other infections.
LOW OXYGEN: Without enough oxygen in the blood, organs, including the brain, don’t function properly. As a result, toxins accumulate in the bloodstream and hea-daches ensue. This happens because low oxygen levels initiate the widening of blood vessels.
GERMS: Droplets in the air, like when somebody sneezes, are one of the big causes of colds on airplanes – they can travel up to 12 feet! Additionally, it is nearly impos-sible to avoid touching stu that dozens of people with colds have touched – trays, cups, magazines, sinks. Touch a cold virus germ, then touch your face, and you’ve exposed yourself to the virus.
MOTION: You get motion sickness when your inner ear, eyes, and sensory nerves sense that your body is moving, but the other parts don’t. So when you are in a plane, your inner ear may sense motion, but your eyes may not see the movement.
NEW FOODS: your stomach is not accustomed to the microorganisms in the water and food in many warm weather countries so it rebels until the gut can adjust.