Physical inactivity is a key determinant of health across the lifespan. A lack of activity increases the risk of heart disease, colon and breast cancer, diabetes mellitus, hypertension, osteoporosis, anxiety and depression and others diseases. Emerging literature has suggested that in terms of mortality, the global population health burden of physical inactivity approaches that of cigarette smoking. The prevalence and substantial disease risk associated with physical inactivity has been described as a pandemic. The prevalence, health impact, and evidence of changeability all have resulted in calls for action to increase physical activity across the lifespan. In response to the need to find ways to make physical activity a health priority for youth, the Institute of Medicine's Committee on Physical Activity and Physical Education in the School Environment was formed. Its purpose was to review the current status of physical activity and physical education in the school environment, including before, during, and after school, and examine the influences of physical activity and physical education on the short and long term physical, cognitive and brain, and psychosocial health and development of children and adolescents. Educating the Student Body makes recommendations about approaches for strengthening and improving programs and policies for physical activity and physical education in the school environment. This report lays out a set of guiding principles to guide its work on these tasks. These included: recognizing the benefits of instilling life-long physical activity habits in children; the value of using systems thinking in improving physical activity and physical education in the school environment; the recognition of current disparities in opportunities and the need to achieve equity in physical activity and physical education; the importance of considering all types of school environments; the need to take into consideration the diversity of students as recommendations are developed. This report will be of interest to local and national policymakers, school officials, teachers, and the education community, researchers, professional organizations, and parents interested in physical activity, physical education, and health for school-aged children and adolescents.

It's an unquestioned truth of modern life: we are starved for time. We tell ourselves we'd like to read more, get to the gym regularly, try new hobbies, and accomplish all kinds of goals. But then we give up because there just aren't enough hours to do it all. Or if we don't make excuses, we make sacrifices- taking time out from other things in order to fit it all in. There has to be a better way...and Laura Vanderkam has found one. After interviewing dozens of successful, happy people, she realized that they allocate their time differently than most of us. Instead of letting the daily grind crowd out the important stuff, they start by making sure there's time for the important stuff. When plans go wrong and they run out of time, only their lesser priorities suffer. Vanderkam shows that with a little examination and prioritizing, you'll find it is possible to sleep eight hours a night, exercise five days a week, take piano lessons, and write a novel without giving up quality time for work, family, and other things that really matter.