You can also view previously answered questions in the HSW Question Archive . If you have ever spun around like a top or rolled down a hill, then you have probably experienced dizziness or vertigo .
Some people even get dizzy just getting up too fast from the sofa.
When you become dizzy, a part of your body that senses motion has sent the wrong signal to your brain. An amazing system in your inner ear is the key to dizziness. The body senses whether it is upright or lying down or whether it is moving or standing still through the vestibular system , which is in the upper portion of the inner ear. See an illustration of the ear here . The crystals are attached to hair-like sensory nerve cells in different orientations.