In the same week that we learned about the devastating metabolic effects of the weight loss induced by hours-long exhausting workouts in  participants in the “Biggest Loser”, a paper byJenna Gillen and colleagues from McMaster University, Hamilton, Canada, published in PLOS One, shows that all it takes is one minute of vigorous all out exercise to significantly improve your health. Unbelievable as it sounds, the rather rigorous randomised controlled 12-week trial in 27 sedentary men showed just that. The researchers divided the participants into three groups: three weekly sessions of sprint interval training (SIT) involving a total of 1 minute of intense exercise within a 10-minute time commitment (n = 9), three weekly sessions of traditional moderate-intensity continuous training (MICT) involving 50 minutes of continuous exercise per …