( CNN) It’s a few questions with an answer that researchers are still trying to better understand: How much usage do kids need on a daily basis?
In the United Country, the Centers for Disease Control and Prevention recommends that children and adolescents should get at least an hour of physical work every day. The United Kingdom’s National Health Service recommends the same.
There are questions too about the different types of physical activity kids and teenages should do, how to get young people excited about activity and what research attempts are underway to better understand fitness on a molecular level.