Implementing at least a 20-minute cardio and 20-minute strength training routine five times a week will prepare you for the mental and physical challenges you may encounter. Additionally, regular exercise helps promote weight control, combats health conditions and diseases, improves your mood, boosts your energy and increases the effectiveness of sleep (U.S. Air Force photo/Staff Sgt. Brandon Shapiro)

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Photo by: Staff Sgt. Brandon ShapiroReleased  |  VIRIN: 130129-F-JA000-001.JPG