( CNN) It’s a question with an answer that researchers are still trying to better understand: How much effort do girls involve on a daily basis?
In the United States, the Centers for Disease Control and Prevention recommends that children and adolescents should get at least an hour of physical pleasure every day. The United Kingdom’s National Health Service recommends the same.
There are questions too about the different kinds of physical task girls and teenages should do, how to get young people excited about exercise and what study endeavors are underway to better understand fitness on a molecular level.