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 ...

Nicotine itself could clear from your body in a few hours, but its byproduct can linger for days or weeks. Most nicotine tests detect cotinine, which can show up in urine, saliva, blood, hair, and ...