Jennifer AnistonTo Botox or not to Botox? While Hollywood actresses are under immense pressure to remain youthful, too many cosmetic procedures can freeze their faces into a parody of the comedy/tragedy masks that are a symbol of their profession.

And nobody wants an actor who can't move her face.

Jennifer Aniston, 41, has set off new interest in the subject by telling UK Harper' Bazaar that she wouldn't mind having Botox herself. "I could do it, and I mean these lines are getting deeper every day," she told the magazine.

However New York's top plastic surgeon tells PopEater: "If you wait until your forties to start having this done, the horse has already left the barn."