Going to the gym in a lunch-break makes you work better

"Employers should encourage staff to take breaks for exercise as they work better on gym days than on non-gym days, a team at Bristol University, UK, said. Two hundred people working at the University, a pensions company and a computer company completed questionnaires about their mood, workload and performance on days when they went to the workplace gym or exercise class and the results were compared with the answers from days they did not. The workers, who were already in the habit of exercising, chose their own mode, frequency and intensity of workout to better reflect a real-life situation. Most used a gym and did classes while some did weight training and team sports. The majority said they did moderate to vigorous intensity exercise for 45 minutes or less" Telegraph