Seasickness
Seasickness is not an illness in the traditional sense. Symptoms such as nausea, vomiting, or lack of energy are summarized under this term. These are triggered by faulty processing of conflicting sensory impressions in moving spaces. While the balance system registers movement, the eyes report stillness in a rigid space below deck of a boat. This conflicting information overwhelms the nervous system and triggers an emergency response with the common symptoms.
Medications and home remedies can alleviate these symptoms, but cannot eliminate the actual cause of seasickness.
With a Steady Gaze
Many people unconsciously use their visual system to maintain balance. On a ship, this habit leads to a conflict, as the eyes search for a visual reference on supposedly fixed objects despite the movement of the ground beneath. This provides different information than what comes from the balance organ in the inner ear. The nervous system tries to compensate for this contradiction, which quickly leads to overload and thus to the symptoms of seasickness.
Those who are seaworthy have learned to orient themselves only to gravity and move accordingly. This process is learnable and is intensively practiced in the training.
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