<unk>  is a sensation which is induced by air travel. It is a specific form of motion sickness, and is considered a normal response in healthy individuals.<unk>  occurs when the central nervous system receives conflicting messages from the body (including the inner ear, eyes and muscles) affecting balance and equilibrium.
The inner ear is particularly important in the maintenance of balance and equilibrium because it contains sensors for both angular (rotational) and linear motion.<unk>  is usually a combination of spatial disorientation, nausea and vomiting. Experimentally,<unk>  can be eliminated in monkeys by removing part of the cerebellum, namely the nodulus of the vermis.
Airsickness
Dry eyes
Tinnitus
Myxedema
Brain fog
Red eye  
Red eye 
Red eye