# ##tie , meanwhile , shows off her well - toned arms at the Oscars . She works out three times a week with her long - term partner , Mandy grace . What to learn : The medicine ball overhead press is great for upper arms .
Jennifer Aniston , 46 , showed off her well-toned arms at the Oscars . She works out three times a week with her long-term trainer , Mandy Ingber . What to try : The medicine ball overhead press is great for upper arms .