The science behind high intensity interval training and it's effects

 The science behind high intensity interval training and it's effects 

High intensity interval training (HIIT) is a type of exercise that involves short bursts of high intensity activity followed by a brief period of rest or lower intensity activity. This type of training has been shown to be an effective way to improve cardiovascular fitness and burn calories in a shorter amount of time compared to traditional steady-state aerobic exercise.

The science behind HIIT is based on the principle of interval training, which involves alternating periods of high intensity exercise with periods of lower intensity exercise or rest. This type of training can challenge the body in different ways compared to steady-state aerobic exercise and can result in a number of physiological adaptations that can improve overall health and fitness.

One of the main benefits of HIIT is that it can improve cardiovascular fitness by increasing the body's ability to deliver oxygen to the muscles during exercise. It can also increase the body's ability to use fat as a fuel source, which can lead to weight loss and improved body composition. In addition, HIIT has been shown to improve insulin sensitivity, which can be beneficial for individuals with type 2 diabetes.

Overall, the benefits of HIIT are thought to be due to the high intensity of the exercise, which can stimulate the production of growth hormone and other hormones that can promote muscle growth and improve overall physical function.