Bodybuilding is a form of exercise and sport that involves the use of progressive resistance training to build and control the size and shape of the muscles of the body. This is typically achieved through the performance of exercises such as weight lifting, push-ups, squats, and other resistance training activities. Bodybuilders often follow specific diets and use supplements to help them achieve their goals.

Gym, on the other hand, is a place where people go to perform various forms of exercise, including bodybuilding. Gyms typically have a wide range of equipment and facilities, including weights, machines, cardio equipment, and group fitness classes. Many gyms also have personal trainers and other staff available to assist members with their workouts.

Calisthenics, also known as bodyweight training, is a form of exercise that involves the use of one's own body weight as resistance in order to build strength and improve physical fitness. Calisthenics exercises can be performed anywhere and do not require any specialized equipment. Some examples of calisthenics exercises include push-ups, squats, lunges, and burpees.

Bodybuilding, gym, and calisthenics all have their own unique benefits and can be effective ways to improve physical fitness and achieve specific goals. However, it is important to consult with a healthcare professional or a trained fitness professional before starting any new exercise program.

The most popular hashtags in bodybuilding and gym are #bodybuilding, #gym, #fitness, #workout, #fit, #health, #exercise, and #trainhard. Other popular hashtags include #fitspo, #getfit, #noexcuses, and #sweat. It is important to use hashtags appropriately and not overuse them in order to avoid spamming and to maintain the integrity of the content.