E cigarettes are changing how nicotine is consumed and perceived. Patterns of use often differ from traditional smoking, with more frequent and prolonged exposure throughout the day. This raises questions about cumulative Science & Tech Spotlight: E cigarettes U.S. GAO Cardiovascular Consequences of E Cigarettes: A New Challenge for Cardiologists Health effects of electronic cigarettes Wikipedia Smoke without fire: What's the truth on e cigarettes? New Scientist An updated overview of e cigarette impact on human health Respiratory Research Springer Nature Link