good news! - Less is more with exercise...

It’s true - thirty minutes of daily exercise achieves the same amount of weight loss as 60 minutes.

Scientists studied 60 heavy but healthy Danish men who exercised for either 30 or 60 minutes a day while wearing a heart-rate monitor and calorie counter. The training sessions were designed to generate a light sweat but the participants were expected to boost the intensity and push themselves harder three times a week. The men who exercised 30 minutes a day lost an average of about 3.5 kilos over three months, compared with an average of 2.5 kilos for those who exercised 60 minutes a day.

Participants exercising 30 minutes per day burned more calories than they should relative to the training program that was set for them. Exercising for a whole hour instead of a half did not provide any additional loss in either body weight or fat. The men who exercised the most lost too little relative to the energy they burned by running, biking or rowing. Thirty minutes of concentrated exercise gave equally good results on the scales.

These surprising results may be due to the fact that doing just 30 minutes of exercise left participants with the desire and energy to do more physical activity after their required exercise sessions. In addition it is likely that the men who did 60 minutes of exercise daily ate more and therefore lost less weight than anticipated.

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