If you're suffering from tennis shoulder but the only tennis you've been playing is virtual, it could be too much Wii. The Nintendo video game with the innovative motion sensitive controller is putting a strain on players' wrists and shoulders—a condition one physician diagnosed as "wiiitis."
The doc described the affliction in a letter to the New England Journal of Medicine and recommended a cure: "ibuprofen for one week, as well as complete abstinence from playing Wii video games." Wiiitis joins Space Invaders' wrist and Nintendoitis in the annals of video game-related maladies. (Read more Nintendo Wii stories.)