is smoking cigarettes worse than smoking pot Poll: Americans Think Less Harmful Marijuana smokers at higher risk

woman smoking a cigarette Captions are provided by our contributors

"If you're going to come in, please, feel free." Kralat's calm, charismatic voice rolled out like a wave of molasses

Witkin SS, Mendes-Soares H, Linhares IM, Jayaram A, Ledger WJ, Forney LJ: Influence of vaginal bacteria and D- and L-lactic acid isomers on vaginal extracellular matrix metalloproteinase inducer: implications for protection against upper genital tract infections

An epidemiological study found that men whose mothers smoked 10 cigarettes (or more) a day had lower sperm counts than men with non-smoking mothers

The recycling and disposal of boxes of cigarettes also come under scrutiny as part of broader discussions on reducing single-use waste