Why does the room keep spinning after I stop.


Why does the room keep spinning after I stop.

In: Biology

There is a fluid in your ears that help you keep balance. It can help you tell if you are upside down or right side up. When you spin, that fluid spins as well. Like water in a glass, you can spin it and set it down and the water still takes a minute to fully calm down. The same thing happens in your ear. The fluid keeps spinning making you think you are still spinning.

You have two sort of circles (vertical and horizontal) in your inner ear, they have fluid inside them and some sensors, the sensors are like little hairs. If you spin, the circles rotate but the inertia of the fluid keeps it slower, so the hairs get pushed. When you stop, the fluid keeps moving, again due to inertia, and so the hairs are still bent (in the opposite direction though). That’s why you feel the room is still spinning, and when you try to stand up and walk, you’ll notice you tend to one direction, that’s because your brain thinks you’re spinning the other way and it tries to offset the movement. There ia other feedback input to tell your brain what you’re doing (like proprioceptors and linear acceleration sensors), so it doesn’t feel the exact same as spinning does.

In addition, visually speaking, it’s another one of those shortcuts your brain takes. If you subject it to some kind of consistently shifting pattern, like a spiral rotating on a screen, your brain tries to help lighten the load by assuming some of the input your eyes get. I’m not sure if I’m explaining that quite correctly, but that is another reason why things may continue to visually shift, in addition to your inner ear putting you off balance.