If you didn’t see Horizon tonight and are interested in the health benefits of exercise, it makes essential watching! http://www.bbc.co.uk/i/b01cywtq/
The bottom line is that three bursts of max activity, duration 20 seconds each and interspersed with a recovery period, three times a week, can have a dramatic effect on both insulin retention and VO2 max levels… even within the first month!
Worth a watch… and a try too!