Study: Office workers must exercise for an hour a day to counter death risk

Lead scientist Professor Ulf Ekelund, from Cambridge University and the Norwegian School of Sports Sciences, said: “We found that at least one hour of physical activity per day, for example brisk walking or bike cycling, eliminates the association between sitting time and death.”

A decent walk – at a speed of just over three miles an hour – was enough to achieve the benefit, he stressed.

“You don’t need to do sport, you don’t need to go to the gym, it’s OK doing some brisk walking maybe in the morning, during your lunchtime, after dinner in the evening. You can split it up over the day but you need to do at least one hour,” he said.