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 ...

Independent evaluation explores patent-pending pressurized air throat hit technology, no-heat no-vapor valve mechanism, third ...

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.