Calisthenics are exercises that use only body weight and no external weights. Weight lifting is a type of exercise that uses external weights to increase muscle mass. Calisthenics are often performed without any equipment at all. Calisthenics have been around since ancient times and were originally used to develop physical fitness. Today they are still practiced by athletes and people who want to lose weight. Weight lifting is a popular sport where people lift heavy objects using their own bodyweight. People who do weightlifting use different types of equipment such as dumbbells, barbells, kettle bells, medicine balls, etc. Both calisthenics and weight lifting require a lot of practice and dedication to achieve good results. If you decide to start doing either of these activities, make sure you get proper guidance from a professional trainer.