The training consists of 12 high-intensity exercises that use only body weight as resistance. Can be an effective way to lose weight and improve your heart and muscle.

In the original article the authors suggest to repeat the exercise two or three times, to achieve at least 20 minutes of high intensity exercise, as recommended by the American College of Sports Medicine's Health & Fitness.

The authors do not recommend this program for overweight people with previous injuries or elderly. Some of the exercises are not recommended for people with hypertension or any heart enfermadad.

The attractiveness of this training is based on how fast it is, according to the authors, because it has been designed for people with little time, as busy professionals.

This routine has a scientific basis, but has not been tested on a group of people enough to appreciate its benefits.

The entrenamientode seven minutes is not a pleasant experience. The authors argue that "the proper execution of this program requires a person willing and able that can withstand a high degree of discomfort."

This it may seem daunting to some of you. But for those who manage to make training a habit, discomfort may be less pronounced, says Wendy Wood, a professor of psychology and business at the University of Southern California.

The trick, as with any other exercise, is to make it habit as part of the daily routine.

When starting the program, the discomfort can be a small handicap, but easily surmountable by the short duration of the workout.