How much running should a 8-year-old do a week?

children generally get plenty of exercise just being kids...ya know, runnin around and being all hyper and what not. As long as your kid plays regularly on the play ground and does the things kids usually do then that is usually adequate. Just make sure they arent spending all their time on video/computer games and being sedentiary. If you are concerned that they are not getting enough then you may wanna see if they are interested in any sports, that is a great way to keep them active and healthy, and have fun at the same time.