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-   -   Travel sickness (http://www.physicsforums.com/showthread.php?t=757)

Jack Apr3-03 01:35 PM

Travel sickness
 
What causes car sickness and how is sitting on a newspaper suposed to help?

Loren Booda Apr3-03 01:54 PM

Newspaper there for "sickness bag" origami.

arcnets Apr3-03 02:40 PM

Jack, what age is the oldest person ever having reported car sickness to you? I suspect, about 5~6 yo.
Car sickness = boredom.
Standard remedy = placebo.
Better remedy: entertainment.
I always talk & sing funny when driving with the kids. No sickness problems!

Raavin Apr3-03 09:56 PM

As far as the cause goes, i'd say it's got something to do with the fluid in your inner ear wooshing round and not matching what you are observing. Your brain goes into overdrive. I'd agree with the distraction thing too. I think if you're a bit animated the subtle motions of the car would be out weighed by your actual body movements.

Raavin

enigma Apr3-03 10:33 PM

Quote:

Originally posted by arcnets
Jack, what age is the oldest person ever having reported car sickness to you? I suspect, about 5~6 yo.
Car sickness = boredom.
Standard remedy = placebo.
Better remedy: entertainment.
I always talk & sing funny when driving with the kids. No sickness problems!

I have experienced car sickness when driving for extended (more than 4 hours e.g.) periods.

My fiancee gets motion sickness much more often.

Loren Booda Apr3-03 11:51 PM

On my last plane trip to Florida, the other sardines must have thought I was dying by purge! How embarrasing. Having had inner ear infections when young make my vestibular very sensitive; good for imagining physics, not for experiencing air jockey. Meds don't help much. I'd rather die than to live in zero-g.

Viper Apr4-03 06:29 AM

WHy has it been moved here??????
I think Jack was looking for a physics answer. Not to do with sardines Loren Booda?

Monique Apr4-03 07:16 AM

Physiology doesn't exactly fall under physics does it? Motion sickness is basically caused by conflicting inner ear and visual clues when the body is subjected to accelerations of movement in different directions or under conditions where visual contact with the actual outside horizon is lost. Children will be affected by this since they are too small to look out of the car window or they are too busy reading or concentrating on a puzzle. I myself get motion sick anytime that I try to read while sitting in a moving car, the best way to regain a steady stomach is by looking straight ahaid at the horizon in the direction you are moving. There are over the counter -or prescription- drugs available for those among us who are oversensitive to motion sickness.

russ_watters Apr4-03 08:19 AM

My boss's wife quickly (<5 minutes) gets car sick when driving on a curvy road. It most certainly is a real phenomenon.

arcnets Apr4-03 09:29 AM

I apologize. Really didn't know so many people suffer from car sickness. Didn't mean to offend anyone. Sorry.

Andy Apr6-03 02:45 PM

I havent had any problems with car sickness since i have ben able to drive myself, so does anybody get car sickness whilst actually driving the car?

Loren Booda Apr6-03 06:35 PM

One gets from familiarity with automobile driving a sympathetic anticipation of controlling accelerations not readily appreciated from passive passenger intuition. With my sensitive middle ear I exaggerate more than most by leaning into curves, as if I were driving a motorcycle. I would guess that motorcycle passengers, more than those of cars, adapt well to potential disequilibria.

Paradox Apr6-03 07:16 PM

Quote:

I havent had any problems with car sickness since i have ben able to drive myself, so does anybody get car sickness whilst actually driving the car?
No, but I get it after around half an hour in the passenger seat.

Jikx Apr7-03 07:00 AM

yeah, i believe the rear passenger seat swings much more when turning hence perhaps the greater incidence of motion sickness.

Perhaps too, being in the passenger seat means you cannot see where you are driving and turns to be made, hence cannot adjust.

Paradox Apr7-03 07:45 AM

If I start reading, it gets much worse. Anybody have an explanation for that?

Monique Apr7-03 07:58 AM

Quote:

Originally posted by Paradox
If I start reading, it gets much worse. Anybody have an explanation for that?
As I explained, when you are reading all your visual clues tell you that you are stationary, when the organ in your middle ear is telling you that you are moving from left to right, accelerating and decellerating. These conflicting sensory inputs confuse the brain and make you carsick. This can be overcome by trying to include some of the outside horizon into your periferal view, so that you can see what is going on around you while reading the book. I just don't read :)

russ_watters Apr7-03 11:35 AM

Quote:

Originally posted by Monique
As I explained, when you are reading all your visual clues tell you that you are stationary, when the organ in your middle ear is telling you that you are moving from left to right, accelerating and decellerating. These conflicting sensory inputs confuse the brain and make you carsick. This can be overcome by trying to include some of the outside horizon into your periferal view, so that you can see what is going on around you while reading the book. I just don't read :)
Which also explains why the driver doesn't get sick but the passenger does. The passenger probably isn't looking out the windows as much.


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