At 7:45 a.m. each weekday, while most of his peers at Naperville Central High School in Naperville, Ill., are sitting in class and groggy with sleep, 15-year-old Matt Bray is running sprints, jumping ...

Share on Pinterest A new study shows an extra 5 minutes of daily heart-pumping exercise could help control blood pressure. Twenty47studio/Getty Images New research shows adding a few minutes of ...