Human: What is the difference between HIIT and HIIT? Assistant: 
The first one is High Intensity Interval Training, and the second one is HIIT. HIIT is a type of training that alternates periods of intense exercise with periods of rest or low-intensity activity. The goal of HIIT is to get the body to burn more fat during the workout, while also improving the body’s ability to recover between workouts. HIIT is also known as sprint interval training, sprinting intervals, and high-intensity interval training.