Posted on Fri Jan 11th, 2013 6:30am PDT
Someone's working on their fitness!
Jennifer Garner was all smiles on Thursday as she went to work up a good sweat at a gym in Brentwood.
The 40-year-old actress has been looking lean lately thanks to her dedicated efforts. What can't this woman do?!
SEE THE GALLERY Jennifer Garner Goes For A Workout
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