It is a commonly held perception that getting in shape and staying there requires hard work and hours upon hours of training. Now, new research shows the opposite – just four minutes of vigorous activity three times per week is enough to make previously inactive men fitter and more healthy.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/0...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/0...