Today's high-tech world is truly awesome, but it comes with a price. Children now spend more than seven and a half hours a day in front of a screen, be it a tablet, P.C., smart phone, or television. If we are supposed to exercise one hour a day to keep up with health standards, that isn't happening. Young readers need to know that exercise really can keep them healthy, help them age well, and help them avoid many diseases. This collection of essays...