Running is better than sitting on the coach. But strength training is better than running. Why you should not be running , by Mark Rippetoe: https://startingstrength.com/article/why-you-should-not-be-r...
I was once a runner and I loved it!! The problem is I always had pain in my legs, joints, knees etc
cycling, hiking, strength training.
There are better forms of exercise, still, running is better than sitting on the couch and getting started with some sort of exercise is a great idea for your health.