These days you can find sports gyms and fitness centers everywhere, and many of them are open 24 hours a day. Even if you stay at the office late, you can work out before going home. If you are a morning person, you can work out before you go to the office. It sounds very convenient, but do people really work out alone? I know someone who tries to go to her gym once a week. She says that she wants to go more often, but after she gets home, she doesn’t feel like going out again. Another person I know became of member of a 24-hour gym, but she only went once. I think that it is difficult to work out alone. I have a friend who goes regularly, but he doesn’t work out by himself. He takes classes when he goes to the gym.