WWE has teamed up with MDA to "Make a muscle, make a difference." Every year, MDA sponsors about 80 weeklong summer camp sessions ... ... serving more than 4,000 children across the United States. "Make a Muscle, Make a Difference" is a campaign to support MDA. MDA is the world leader in ALS research. WWE has teamed with MDA to show its support in the fight. Superstars have supported MDA by appearing on the MDA Telethon ... ... and donating awesome items and their time for kids with muscle disease.