fitness exercises

I did fitness exercises with my friend after school. We took two short programs, boxing and core training. The former took an hour and it made me so tired. The number of students who took the program was about eight, but girls were two, only us.(^^; The latter is training that straiten up backbone by relaxing on a pole. I took it because I heard it could make a slim waist. I really enjoyed both of exersises. I haven't got enough exercise since I entered the university, so I felt so refreshed. I want to do exercises periodically for my health.