nicotine

Writer Gregor Hens doesn't smoke anymore, but he still thinks about it every day. He says he started writing his memoir as a way to deal with the longing.

Quitting abruptly is more effective, a study finds, even for people who'd rather phase it out gradually.

A carrot isn't enough — bring on the stick. A study finds smokers are more likely to quit tobacco if they lose some of their own money after a relapse, than if they get a bonus for quitting the habit.

The product is called snus — a tiny bag of smokeless tobacco that users slip between the lip and gum. A Swedish maker claims the product is safer than cigarettes, cigars and chewing tobacco.

Everybody knows that you're not supposed to smoke while you're pregnant because it's bad for the baby. But nicotine patches often used to help women quit may pose a risk, too, researchers say. Other forms of nicotine replacement may do less harm.