All symptoms of motion sickness usually go away in 4 hours after stopping the motion. As for the future, people usually don't outgrow motion sickness. Sometimes, it becomes less severe in adults.

For the vast majority of people, dizziness after a roller coaster is temporary and lasts anywhere from a few minutes to a few hours. This sensation, often called "motion sickness" or "vestibular disorientation," occurs because your eyes and your inner ear (which controls balance) send conflicting signals to your brain during high-G turns and drops. If you are dehydrated or have low blood sugar, the feeling may linger slightly longer. However, if the dizziness or a "spinning" sensation (vertigo) persists for more than 24 hours, it could indicate a more significant disruption of the inner ear fluid or even a minor "whiplash" injury to the neck. In rare cases, travelers can experience Mal de Debarquement, where the feeling of movement lasts for days. To recover quickly, it is recommended to sit in a cool, shaded area, hydrate with water or electrolytes, and focus your eyes on a stationary point on the horizon to help your brain "re-calibrate" to the stationary ground. If you experience severe vomiting or difficulty walking, you should seek medical attention.