Good news for Couch Potatoes. No more Excuses.

The body can get as much benefit from a short but intensive bursts of exercise lasting ten minutes than it can from ten hours of moderate training.

The technique not only takes less time but also involves much less physical effort.

That is maybe for couch potatoes only but certainly not for serious athletes. They already do this sort of interval training but to reach peak fitness for a race an athlete or cyclist has to do hours of base training going into weeks, without which the peak would be very low indeed. I decided to try the programme and realised that before you can do the intensive bursts you have to first warm up for at least ten minutes and then also warm down for a few minutes afterwards, which brings the training time up to half an hour. Another problem with this is that it is certainly not going to control your weight.