If you're between the ages of 15 and 18, or know someone who is, pass this offer along!

Planet Fitness is doing the Teen Summer Challenge and is offering free gym memberships to those between the ages of 15 and 18 from May 15 through September 1.

There are a bunch of Planet Fitness locations in Monmouth and Ocean counties. For a list, go here.

According to NJ Advanced Media, 50% of American teens in high school aren't getting enough "strength exercises" during the week.

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