Many U.S. teens and young adults have no idea much nicotine is in the vaping products they use, a new study says. Researchers asked 445 17- to 24-year-olds in California about their tobacco and nicotine use, especially the use of pod-based e-cigarettes, such as Juul. The devices, which resemble computer thumb drives, consist of a… read on >











-300x200.jpeg)







