Time to HIIT the gym
RAF MILDENHALL, England -- Senior Airman Carlos Morales, 100th Force Support Squadron fitness specialist (right), encourages Toya Jenkins during a High Intensity Interval Training class at the North Side Fitness Center here Jan. 12, 2011. Airman Morales teaches the class Monday, Wednesday and Friday at 11 a.m. (U.S. Air Force photo/Senior Airman Tabitha M. Lee)