What makes people dizzy when they spin?

Answer 1

It is caused by our brain's interpretation and reaction to the sensations of spinning motion generated by the Vestibular System of the inner ear, the Visual System's reaction to motion and the body's signals from the Skeletal System (especially the joints) indicating motion.

Our ears do more than hear. Our sense of balance is a second function of our inner ears. There are places in the inner ear that have a fluid inside, and as you move your head and body, this gel-like liquid sloshes around and moves against some tiny cilia (hair like cells). When these hairs move due to the movement of the fluid (which is caused by changes in forces on the fluid, like gravity), our brain uses these movements to interpret the body position and adds to the other senses that we use in our spatial sense. Then we can tell how we are oriented, so we can walk and balance our bodies.

There is another part of the system of balance that is in the inner ear that can also tell the brain whether we are sitting up, leaning back, or lying down, based upon the position of our head. This part uses little "stones" that move with the motion of our heads to keep track of this body positioning.

The part of the ear that works to help us keep our balance is called the Vestibular System. It includes an area known as a labyrinth, that is a maze of tubes that hold the cilia and fluids. It is on the opposite end of the labyrinth from the cochlea, which is the part of the inner ear that allows us to hear.

Along with the movement of the fluid, other signals from our bodies also are included in the brain's analysis and fine tuning of our senses of motion, movement, position, and balance. These other signals come from the eyes and vision, and also from movement and forces on the joints and skeleton (mostly in our feet and legs) that orient us to our vertical position. Our brains react to the sensations of spinning movement with safety features that create the symptom of dizziness, this will usually make us stop the the motion and lie down where we cannot be thrust against things or fall and hurt ourselves.

Answer 2

Usually because you are drunk before doing it, but also because it disrupts the even balance of the fluid in your inner ear. Your inner ear sort of sends messages to the brain,letting it know what way up you are and sh!t, so when the fluid in there gets swished around, when you stop, it is still sending messed up messages to the brain.

Answer 3

Well, that's because there are these fluids in your ear, and in those fluids, there is hair, so when you spin, the liquid spins too, bending the hairs, and the hairs signal your brain that you are spinning. But when you stop spinning, the liquid is still spinning, still bending those hairs, so the brain thinks you are still spinning, although you aren't. That's why you feel dizzy.