HealthLinksSC.com | 79 Researchers with the National Institutes of Health in Bethesda, Maryland, estimate that 1 in every 3 individuals is highly susceptible to motion sickness. Symptoms commonly include cold sweats; salivation; excessive sweating; vomiting or retching; headaches; and nausea. People have also been known to experience loss of appetite, increased sensitivity to odors, hyperventilation and even anorexia. And in extreme cases, you might experience vertigo – the sensation that the world around you is spinning but which is actually separate from motion sickness. But, so far, Drs. Eve Glazier and Elizabeth Ko, specialists in internal medicine at UCLA Health in Los Angeles, said an exact cause for motion sickness has not yet been determined. For example, suppose your physical body is in motion, but the ground is stationary. When you turn your head, bend down or twist around, Dr. Glazier said what you see is in sync with what your inner ear says is happening. If you’re in a car on a twisty road, however, the signals get mixed. “Your eyes say your body is sitting still, but, to your inner ear, your body is in motion,” she said. “This sensory dissonance stimulates pathways in the brain that lead to the often gut-churning symptoms of motion sickness. For whatever reason, the brain has decided the body is best off purging itself, and either nausea or vomiting can be the outcomes.”
RkJQdWJsaXNoZXIy MjcyNTM1