Time.
This. 14-Minute Metabolic Workouts is the solution to everyone\'s time problem, in that it offers fitness-conscious people a variety of compact, science-based workouts that target the five components of physical fitness--cardiovascular endurance, muscular endurance, muscular strength, body composition, and flexibility.
But everyone has fourteen minutes.
It is the thing that Most people claim they don\'t have enough of, and the lack of it is the Most common excuse for not exercising.
Time