Comment by kazinator
1 month ago
I'm skeptical that this kind of tech can fully counteract serious motion sickness, like many hours or days on a boat.
From personal experience, I know that even if you go out onto the deck and look out on the ocean, so that you have a visual reference to the horizon, it doesn't help.
You can look out of the window of the car and still get motion sickness; it doesn't only happen to people who are engaged with something inside the vehicle.
The external visual reference doesn't entirely help the fact that your body is experiencing accelerations not of its own accord.
The leading hypothesis on motion sickness is that your brain interprets the mismatched motion sensations as being caused by a poison acting on your brain, and triggers a response to empty your stomach contents and make you averse to more ingestion.
This mechanism is not easily defeated by visual tricks. If they can slow the onset and reduce the severity, that is welcome, of course.
BTW, has anyone here tried the motion sickness glasses? This is an object which has a hollow rim, partially filled with colored fluid. The glass rims, as well as additional circles placed laterally near the temples, act as "semicircular canals": the fluid moves to provide a kind of horizon reference.
The apps are targeted at a very specific but common use case: being unable to read while in a moving vehicle. It's not going to help you if you're on a sailboat in heavy seas for a day.
I dunno, I was wondering about this .. if maybe there were a projector on the mast or from a cabin-ceiling mounted project, which always gave a local physical reference to the Earth, no matter the condition of the boat on the sea, it might kind of produce the same effect - albeit instead of applying dots to the screen, its dots to the hull. I really wonder if a polka-dot locator would be effective in addressing sea sickness..
You can get sea sick while outside on an upper deck. Or even if you're looking out of the window of the land vehicle you're riding. As a kid, I got nausea on ~2h bus trips, even though I looked out the window. If you don't look out the window, the onset may be quicker and stronger, so there may be some mitigating effect.
Your best bet is medications, though.
Funny story.
This year I went to Ogasawara ("Bonin Islands"): 24 hours by boat. The sea was rough on the way there. Pretty strong winds which added several hours to the time. I puked like 20 times, the last 17 of those on completely empty stomach contents or just water.
On the way back I took the Japanese anti-nausea cocktail known as Aneron which contains four drugs, none of which are available in Canada over the counter. The instructions warn against combining with other meds. I disregarded that and also took Gravol for good measure. I slept almost the entire 24 hours (except for waking up once to reload on the shorter-acting Gravol), and walked like a zombie after alighting in Tokyo. My heart rate was down to 40 (and I was not in good aerobic shape, though getting there now).
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