About 25-40% of the population has some degree of motion sickness. Women and children over two are more prone to it as are those with inner ear disorders.
While experts do not know the exact cause of the nausea, the common theory is that it is caused by a sensory mismatch between the visual and vestibular systems. The vestibular system, part of the inner ear, monitors movement and helps control balance. So when our inner ear tells our brain we are moving our eyes tell us we are not and vice versa. So why do we react with vomiting? A commonly held belief is that there is a false identification by the brain that there is a toxin in the body and nausea and vomiting are a protective response to get rid of it.
(Quote of the Day: “What do doctors know about the needs of a man’s soul?” Anthony Quinn in A Walk in the Clouds.)
Scopolamine patches are perhaps the most common treatment for motion sickness and is frequently used on cruises. It is a prescription while Dramamine is perhaps the best over-the-counter medicine. A number of studies show benefits taking ginger root capsules. Listening to music and deep breathing may aid. Eating a light meal beforehand especially high in protein is better than an empty stomach. Lastly, watch what is going on ahead of you and avoid reading or moving your eyes side to side.
From Sumathi Reddy, WSJ.
