I think this is good advice. I get air sick if I fly on an empty stomach but if I eat a low fat meal before I fly, no issues at all. I usually get a deli sandwich dry which works for me. After riding metro for years, never experienced motion sickness so cannot say if it will help. Using MTA has never caused me an issue either. Now being trapped on a Metro train for long periods has caused me much anxiety which makes me sick to my stomach…….