This offends me—both as a coffee drinker and as a fan of science—so I thought I’d look into a few common coffee myths and dig up some actual science. If the bold taste of dark roast coffee makes you feel alive, fine: I don’t want to take that away from you. Coffee doesn’t stunt growthMany people believe that kids shouldn’t drink coffee, or any kind of caffeinated beverage, because it prevents kids from growing. Coffee doesn’t dehydrate youMany people believe that drinking coffee is dehydrating. Coffee doesn’t cause heart diseaseAnother common coffee myth: drinking can cause heart diseases.