Rutgers Health research confirms confusion about the different mechanisms that make tobacco addictive and deadly.

Nicotine has a half-life of about two hours and can stay in the blood for about one to three days. Cotinine, a byproduct of nicotine, has a half-life of 18 hours and can last for several days.

Medically reviewed by Kashif J. Piracha, MD Key Takeaways You can get addicted to nicotine within days of starting to use it.

New research shows nicotine withdrawal heightens surgical pain and analgesic needs. Keep reading to learn how brain activity ...

When quitting smoking, a person may experience one or more symptoms associated with nicotine withdrawal. Using different strategies and treatments may help lessen the severity of these symptoms.

Nicotine withdrawal induces behavioral symptoms such as tremors and shaking. Suppressing striatal cholinergic interneurons or administering the muscarinic antagonist Procyclidine significantly reduces ...

According to the Centers for Disease Control and Prevention (CDC), nicotine use and dependency have increased across the United States in recent years. This is often attributed to the use of vapes, ...

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 ...