Nicotine is an addictive substance found in cigarettes and some vaping devices. Over time, continued nicotine use can lead to long-term brain changes. Nicotine is the active ingredient in tobacco, ...

Nicotine patches help people quit smoking. However, people can sometimes become addicted to these patches. Misuse can play a role in this process. Quitting smoking cold turkey can cause uncomfortable ...

Nicotine, an addictive stimulant found in the tobacco plant, can increase the release of dopamine and other neurotransmitters in the brain. But claims that the chemical is not addictive and can ...

Sarah Todd returned to reporting in January 2025 after being assignment editor at STAT since October 2022. You can reach Sarah on Signal at sarahlizchar.47. Many Americans take a dark view of nicotine ...

Dipa Kamdar does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...