Just 1.4% of students said they smoke them, the online survey, of nearly 30,000 students between January and May, found. Vaping has topped the list as the most popular method of using tobacco for ...

In 2003, UCLA epidemiologist James Enstrom and I published a study of environmental tobacco smoke (ETS)—also called "secondhand smoke" or "passive smoking"—in the British Medical Journal (BMJ).