pennstatehershey.org/projecthe... Did you know that almost half of America's youth between the ages of twelve and twenty-one is not physically active? Television, computers, video games and cell phones have been keeping us all inside. And while these technologies are wonderful, they're taking us away from our physical activities. Sedentary lifestyle is a serious public problem for both children and adults. Sixty to eighty-five percent of the world's population is sedentary, accounting for approximately two million deaths each year. What can we do to combat that? We can go for walks, we can play with our children or take the stairs. The most important thing to remember? Just keep moving. Another great tip is to park farther from your destinations, like malls or the office. Walking is still a great way to get some exercise.