seasickness – MySymptom

Why do I feel intensely nauseous when I get severely motion sick on a windy boat?

1. Introduction The intense nausea experienced on a moving boat is caused by a sensory conflict between the visual system and the vestibular system in the inner ear. The inner ear accurately detects the continuous rocking and swaying of the vessel, while the eyes, often focused on a stationary cabin or a fixed point on … Read more

Why do I feel extreme motion sickness when riding below the main deck on a boat?

1. Introduction Extreme motion sickness below the main deck of a boat is caused by a profound sensory mismatch between the visual and vestibular systems. The inner ear continuously registers the intense, unpredictable multi-directional swaying and heaving of the vessel, while the eyes perceive the static, unmoving interior of the cabin, leading the brain to … Read more