A new study conducted by University of Iowa researchers has found more American adults are trying e-cigarettes.

Wei Bao [...] analyzed survey data from the U.S. Centers for Disease Control and Prevention. His study revealed that in 2014, 12.6 percent of American adults reported they had tried e-cigarettes. That number increased to 13.9 percent in 2015 and 15.3 percent in 2016.

However, Bao’s study also found that the number of adults who use e-cigarettes “every day” or “some days” fell [...]