Why P.E. In Schools? A survey by the Opinion Research Corporation International showed that physical activity for kids: INCREASES: 1.  Attendance 2.  Energy Levels 3.  Participation 4.  Behavior 5.  Test Scores 6.  Academic Success DECREASES: 1.  Fatigue 2.  Irritability 3.  Apathy 4.  Anxiety 5.  Depression 6.  Infections 7.  Absences