Nicotine quickly enters your bloodstream. Your liver then breaks down nicotine into several byproducts, primarily cotinine. Depending on what you're testing, such as a blood, urine, saliva, or hair ...

Eons before Europeans arrived in North America, Native Americans cultivated the tobacco leaf for ceremonial activities and medicinal purposes for use during prayers and rituals. They presented the ...

Flavored nicotine pouches called Zyn could soon be legally advertised as a lower-risk option for adults who smoke, as federal ...

Parents are increasingly facing a problem that just years ago would have seemed unfathomable: their kids are addicted to vaping. The rise in teen e-cigarette use has been reiterated in study after ...

Health officials hope the additional testing will help identify disease and drug trends more quickly. Measles testing began in mid-July, while opioid and nicotine testing started nine months prior.