2006-08-19 01:11:37 · 14 answers · asked by Phantom of the Opera 4 in Science & Mathematics ➔ Medicine
Travel sickness, which is due to confusion between perceived movement and actual movement. Our sense of equilibrium lies in the ear and works together with eyesight. When these two don't "agree" to what extent the body is actually moving the symptom is presented as nausea even though the stomach itself has nothing to do with the situation.
Motion sickness is a condition in which the endolymph (the fluid found in the semicircular canals of the inner ears) becomes 'stirred up', causing confusion between the difference between apparent perceived movement (none or very little), and actual movement. Depending on the cause, it is also referred to as seasickness, carsickness, airsickness, or spacesickness.
Motion sickness on the sea can result from being in the berth of a rolling boat without being able to see the horizon. Sudden jerky movements tend to be worse for provoking motion sickness than slower smooth ones, because they disrupt the fluid balance more. A 'corkscrewing' boat will upset more people than one that is gliding smoothly across the oncoming waves, and cars driving rapidly around winding roads or up and down a series of hills will upset more people than cars that are moving over smooth, straight roads. Looking down into one's lap to consult a map or attempting to read a book while a passenger in a car may also cause motion sickness.
2006-08-19 01:14:44 · answer #1 · answered by Anonymous · 0⤊ 0⤋
This is due to a balance mechanism of the inner ear with a complex reaction of a liquid and cilia (hair like receptors) to maintain our equilibrium. The constant motion overwhelms the mechanism and we feel nauseated. Dizziness is also an effect of the inner ear sensitivity, as the fluid is still in movement when we stop twirling. We can fool the brain by using compazine or other motion-sickness medications. However, if we stoop over and then suddenly straighten up, this is not the ears but what is a postural hypotension where the blood pressure suddenly shifts and the body needs time to adjust to the sudden change.
2006-08-19 01:24:30 · answer #2 · answered by Frank 6 · 0⤊ 0⤋
Stiggy got it!
Because the sea is in constant motion, and the waves in the distance are moving in a different direction from the wave under your boat, your sense of balance (provided by the motion of fluid in your semicircular canals in your inner ear) is at odds with what your eyes are telling your brain it SHOULD be feeling. This causes nausea. I find that increasing the motion (getting the boat moving) helps to calm this sensation.
2006-08-19 01:17:29 · answer #3 · answered by Grendle 6 · 0⤊ 0⤋
I find most people nauseating whether the boat is rocking or not.
2006-08-19 09:16:06 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It's called seasickness. It's like motion sickness on a roller coaster or
in an elevator. There are many causes for it and ways to prevent it
like wearing a Dramamine patch, when boating. This website has more information on it.
2006-08-19 01:17:49 · answer #5 · answered by Kristen H 6 · 0⤊ 0⤋
People often feel nausiated due to the unbalancing of the liquid in your ear drum, you also feel this way when on roller coasters or when you have a post nasal infection. Along with the nausea you become dizzy and ultimately most of us regergitate.
2006-08-19 13:49:55 · answer #6 · answered by Anonymous · 0⤊ 0⤋
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2016-12-17 13:33:15 · answer #7 · answered by ? 4 · 0⤊ 0⤋
Changes in the semicircular canals of the inner ear occurring rapidly
2006-08-19 02:05:36 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Its to do with the area that controls balance in your ears...and it should be 'nauseated'
2006-08-19 01:17:37 · answer #9 · answered by keefer 4 · 0⤊ 0⤋
maybe they ate to much before they went on the boat.
2006-08-19 02:22:08 · answer #10 · answered by J L 3 · 0⤊ 0⤋