Many studies show a link between obesity and the amount of time people play video games.
Now, the video game company Nintendo is teaming up with the American Heart Association to help people exercise. The AHA logo will now be added on the cover of some of the popular Wii games.
The Wii games encourage people to move around while playing, like pitching a ball or even dancing. But some experts are skeptical the game will really help fight obesity.
"The amount of activity one achieves from these active gaming is really inconclusive in terms of its benefits on health," said Janet Fulton, an epidemiologist with the U.S. Centers for Disease Control and Prevention.
Still, the heart association said the games may at least get people to thinking about living a healthier lifestyle.