Sophomore Nathan Man carefully scrutinizes his physique in the mirror, hoping for signs of progress during a 2-hour-long weightlifting session in Carlmont High School’s weight room. He works alongside several other sports teams who use the facilities for their training. However, Man continues his strength training regimen long after the teams leave until slightly after the weight room officially closes at 5:45 p.m. This is just one of his many exercise sessions within a week.