Four situations where having caffeine is a BAD idea, and WHY. HALT is an acronym used for addiction and recovery but it applies to ALL FORMS of caffeine, too. Reference: DOI: 10.1152/jappl.1996.80.3.999. Caffeinated Beverage of the Episode is (boring) Starbucks Caramel Macchiato (skinny) with 150 mg caffeine. NOTE: Contact GreenEyedGuide to Save the Caffeinated Beverage of the Episode segment, otherwise it's going bye-bye to keep these episodes short and sweet. For more information on caffeine and energy drinks, visit GreenEyedGuide.com