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The fact that she's turning the big 4-0 doesn't bother Jennifer Aniston, who will usher in a brand-new decade on Feb. 11. "It doesn't really faze me, to be honest," she told the British magazine Now. "What does it mean to turn 40?"

For Jen it means having a movie career on the rise, a newly renovated home to call her own, a stable of close friends and a new self-assured attitude that shows she's finally moved on from her ex-husband, Brad Pitt. "I don't think there's anything wrong with living by your own rules," said Jen -- who's proving it with her unapologetic on-again, off-again romance with nine-years-younger beau John Mayer.

For more on dish on Jen, pick up the latest issue of Life & Style, on newsstands now!