This is the seventeenth Coffee Break Collection, in which readers select English language public domain works of about 15 minutes or less in duration -- perfect to listen to during commutes, workouts or coffee breaks. The topic for this collection is health and fitness... views on these, including physical activity, nutrition and sport, have changed drastically over the years. Readers have chosen selections on subjects ranging from judo and walking to advice for the nutrition and education of children, Summary by Lynne Thompson