More than 4m high schoolers and 1m middle schoolers vape, study shows

The study found 21.4% of e-cigarette users in high school reported vaping daily. Photograph: Kenzo Tribouillard/AFP/Getty ImagesAn estimated 4.1 million high school students and 1.2 million middle school students use electronic cigarettes nationwide, a marked increase from numbers reported in years prior, the US Food and Drug Administration and Centers for Disease Control and Prevention said Tuesday.In a study published in the Journal of American Medical Association, researchers found that 27.5%