Thrill rides may not be heartfelt.
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000503:physiopathology*; D006331:Heart Diseases / Q000503:physiopathology; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D010988:Play and Playthings; D012016:Reference Values; D013997:Time Factors