"The thrill of a roller-coaster ride with its climbs, loops and dives can speed up the heart, sparking off an irregular heartbeat that could put individuals with heart disease at risk of having a cardiovascular event like myocardial infarction."
According to the theme park, "Processing the fearful information during a roller-coaster ride can be so intense on your emotional core, it's instantly stored in your Hippocampus (the part of your brain that looks after emotional memories).