The percentage of U.S. adults who smoke has fallen dramatically during the past 50 years, from 42 percent in 1965 to just 15 percent in 2015.1 Despite this decline, roughly one in five U.S. deaths is due to tobacco-related disease, making it the nation’s top cause of preventable disease and death.

U.S. Hispanics tend to defy the odds: They outlive non-Hispanic whites by three years on average, despite having lower income and education levels. In 2014, life expectancy at birth for the U.S. Hispanic population was 81.8 years, compared with 78.8 years for the U.S. non-Hispanic white population.1 For nearly three decades, demographers have probed why…