I`ve often wondered why some people are more prone to motion sickness than others, it seems so unfair that many people never get seasick, while a few can`t even see boats on tv without feeling ill. When I was a kid, I didn`t get sick on trains or cars & buses, but I couldn`t handle sea travel, even on the local ferry. I was wondering if the problem is caused by a faulty balance mechanism, or if the v centre in the brain is not working right in such people. I`ve also wondered why travel sickness improves as people get older, I mean, you hardly ever come across elderly folk who suffer from it.