how many people in the us smoke cigarettes Chart: Who's Smoking U.S.? Cigarette Smoking --- United States,

Garnett C, Oldham M, Shahab L, Tattan-Birch H, Cox S

This is why a 'nicotine test' may actually be a 'cotinine test' or even a test for anabasine (a tobacco-specific alkaloid not present in nicotine replacement products)

Substance Abuse and Mental Health Services Administration show those between ages 18 and 25 make up the largest part of the market: More than 40% of young adults used cannabis within the last year

As medical professionals and policymakers grapple with questions over e-cigarettes and public health, heres a look at what survey data gathered before the recent outbreak shows about e-cigarette use in the United States