Vaping and e-cigarettes are sometimes promoted as ways to help cigarette smokers quit. But what about the reverse? Can vaping lead to regular cigarette smoking later on? A Johns Hopkins cardiologist shares his insights on the potential dangers of vaping, and why avoiding cigarettes and their electronic alternatives is the healthier choice. Vaping: Is It Safe? Or Just Safer Than Smoking? Michael Blaha, M.D., M.P.H. , a professor of medicine at Johns Hopkins, directs clinical research at the...

Air quality in the U.S. has improved tremendously over the last 50 years thanks to the Clean Air Act Amendments of 1970, but not all neighborhoods have benefited from these improvements. The law mandated the Environmental Protection Agency (EPA) to establish National Ambient Air Quality Standards (NAAQS) and to determine which areas of the country meet the standards and which do not, setting the foundation for air quality management in the U.S.  Air quality management agencies and EPA...