what is moist powdered tobacco Chewing use still high among airmen, surgeon general says Smokeless Tobacco Risks for Teeth

Medical Conditions In rare cases, black gums may be linked to serious health issues such as Addisons disease, Peutz-Jeghers syndrome, or melanoma (a form of oral cancer)

Why the US isnt likely to follow The idea is gaining traction globally, but dont expect a nationwide version in the U.S

Essentially with tobacco, the more you use, the more loss you have with both of the indicators, air flow rate and lung volume, said the papers last author Stefan Kertesz, MD, MSc, associate professor in the Division of Preventive Medicine at the University of Alabama at Birmingham School of Medicine and the Birmingham VA Medical Center

Exposure of human epithelial cells at the airliquid interface to aerosols from an e-cigarette device resulted in dose-dependent cell death