This text is missing some spaces, please add them: Also-if,whileriding,youreadorlookoutthesidewindowofthecaror,atsea,ifyouarebelowdeckandcannotseethehorizon,itcantriggermotionsickness.
Also - if, while riding, you read or look out the side window of the car or, at sea, if you are below deck and cannot see the horizon, it can trigger motion sickness.