A US teenager died of cardiac arrest after taking part in a social media challenge daring people to eat a single extremely hot tortilla chip, an autopsy revealed Thursday. Harris Wolobah, a 14-year-old from Massachusetts, died in September after taking part in the so-called "One Chip Challenge" -- which involved a single chip produced by Paqui, dusted with Carolina Reaper and Naga Viper peppers. The dare has manifested in several iterations over the years, with the peppers changing each time.