Both the smoke from burning cigarettes and the smoke exhaled by smokers are dangerous
Le fait quelle persiste pendant des semaines la rend particulirement redoutable
Saliva drug tests are primarily designed to detect the presence of drugs such as cannabis, cocaine, opioids, amphetamines, and benzodiazepines
Quitting smoking, for some people, is a multi-stage process, and turning to vaping can be the first step to waving goodbye to cigarettes
"Boy do they hate tobacco, and it's not because it causes cancer," Carlson said
Follow LiveScience for the latest in science news and discoveries on Twitter @livescience and on Facebook .