A well-equipped standard gym should include the following items: 1. A fitness room, the internal equipment should be used for cardiopulmonary function (exercise bike, treadmill, rowing machine) and muscle exercise (weight lifting equipment). It can also include equipment for stretching exercises and healthy dance classes. 2. A spacious and comfortable dressing room, a shower room with abundant water power and a bathroom. These places should always be kept clean. 3. Sauna room, steam room, hot and cold hydraulic massage pool and solarium for relaxing nerves. 4. Lounge and beverage supply office. 5. Massage parlors, beauty salons and barbershops. These devices can bring very considerable income. 6. Reception, office and storage room. 7. Larger gyms can also include squash courts, tennis courts, swimming pools and game rooms (table tennis and table tennis). Gym equipment must be of good quality and properly maintained and repaired. Cheap equipment is easily damaged, causing dissatisfaction among guests.