The main objective of the next 21 days is to perform cardiovascular exercise to optimize fat burning, logically this must be accompanied by a good diet to achieve a physical change. Although the first days may be simple, little by little we will increase the level to perform exercises of greater difficulty that will serve you throughout your training, remember that the training is focused on continuous exercises to burn the greatest amount of calories in a short time. If you're ready, LET'S GET STARTED!