Some popular types of exercise include strength training, such as weightlifting or bodybuilding, cardiovascular exercise such as running, walking, or biking, Pilates and yoga for stretching and toning, and dance for coordination and grace. Other popular exercises include swimming, high-intensity interval training (HIIT), martial arts for self-defense, CrossFit for a full-body workout, and cycling for low-impact aerobic activity. No matter your goals or interests, there's an exercise that's perfect for you in the US!