By peoplestaff225
Updated April 21, 2016 03:30 PM
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Jennifer Aniston

Jennifer Aniston is PEOPLE’s 2016 World’s Most Beautiful Woman! The actress is opening up about her marriage and sharing her age-defying beauty tips. Subscribe now for this exclusive special edition of PEOPLE!

She knows how to wow on the red carpet in gorgeous sleeveless gowns. Now, Jennifer Aniston is revealing what it takes to get those killer guns.

Working out at least six days a week, Aniston, 47, says weight training does the trick.

“Lifting your own body weight,” she tells PEOPLE in this week’s World’s Most Beautiful cover story. “When I’m at the gym, there are the ropes. Grab little 5-lb. weights if you have nothing else and just move them around.”

The star, who also credits yoga for helping keep her limbs lean, does spin-yoga three days a week, “which is 25-30 minutes of spinning and then 30-40 minutes of yoga.”

She likes to mix up her exercise to keep it interesting and to “shake it up,” Aniston adds. “You know, muscle confusion.”

For more of Aniston’s revealing interview, including beauty tips and secrets she’s learned over the years, pick up this week’s issue of PEOPLE on newsstands Friday

Jennifer Aniston

Married to Justin Theroux since last August, the actress says the two almost always work out together.

“That’s what motivates me, working out with a friend or Justin,” Aniston says. “Group girlfriend workouts are always fun.”

Julie Jordan, @juliejordanc