Nintendo is committed to ensuring not only a fun gameplay experience on the Wii, but a safe one as well. Nintendo has gone to great lengths to inform consumers about the innovative and unique game-play experience on the Wii"

The Wii Remote is perfectly safe when used as instructed: use a firm grip, don't let go, use the wrist strap and make sure the game-play area has ample open space. As when beginning any new physical activity, it's best to pace yourself and not overdo it. Some games, including Wii Sports, include in-game reminders for players to take a break every now and then."