But warmer water temperatures also mean warmer fish—and faster-running metabolisms.
There is evidence that these men are less likely to suffer from heart attacks and prostate cancer, while a study in 2008 found that men with high metabolisms were around 50 per cent more likely to die in a given year than those whose bodies burned up less energy at rest.
When the show began, the contestants, though hugely overweight, had normal metabolisms for their size, meaning they were burning a normal number of calories for people of their weight.
