When he quit: In 2006, the then-host of Punk’d (and soon-to-be star of Two and a Half Men) read a game-changing book called The Easy Way to Stop Smoking by Allen Carr, joining a celebrity fan club that includes Anjelica Huston and Anthony Hopkins. Carr’s method, say devotees, centers on breaking the cycle of fear that prevents smokers from quitting successfully.
Why it worked: As Kutcher related to Jay Leno in 2008, the book actually instructs readers to break for a cigarette at certain points as the author builds his case against nicotine. By the time he’d reached the end of the book, Kutcher was ready to “savor the last puff.”
An expert’s take: The blend of “psychotherapy, common sense and hypnotherapy”, according to the book’s website, may resonate with certain smokers -- but not everyone can become a nonsmoker in the course of a book. “Every smoker who quits does it differently,” says Healton, “and they may try eight to 11 times before they finally quit for good.”