Katherine Heigl has finally kicked her cigarette habit – she’s gone without her daily nicotine fix for over a month.

The Knocked Up star, 30, has been desperately trying to ween herself off the addiction for months after realising smoking was taking over her life.

She previously said, “I started smoking when I was 24, because I’m an idiot. I don’t enjoy it so much now, because I’ve become such a slave to it. I hate planning my life around when I’m getting a cigarette.”

But Heigl has not puffed on a cigarette since quitting tobacco in July – and her health has already been given a boost.

A source tells Us Weekly magazine, “She feels so much better.”

Source, Bauer-Griffin