According to a review of evidence in a medical journal, runners live three years 1 (long)__ than non-runners. You don’t have to run fast or for long 2 __(see) the benefit. You may drink, smoke, be overweight and still reduce your risk of 3 (die) __early by running. While running regularly can’t make you live forever, the review says it 4 (be) __more effective at lengthening life 5 __walking, cycling or swimming. Two of the authors of the review also made a study published in 2014 6 __showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all 7 __(cause). The best exercise is one that you enjoy and will do. But otherwise... it’s probably running. To avoid knee pain, you can run on soft surfaces, do exercises to 8 (strength) __your leg muscles(肌肉），avoid hills and get good running shoes. Running is cheap, easy and it’s always 9 __(energy). If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give 10 __a try.