Check out Women's Health's FitGIF Friday every week for fun and challenging new moves to make your sweat sesh really count. Here's this week's exercise:

Floor chest press feet elevated

Here, your chest and arms get all the benefits of a traditional chest press, plus the added core work that comes from elevating your feet.

And by building muscle under your breasts you canmake them appear perkier...just don't expect a new cup size.