running is my way to relax, no matter the speed i chose. Either jogging or sprinting. 
I like to run too, since it helps build nice calves and it is great cardio.
Of course it is  described as the world's most accessible sport.
That makes a lot of sense. Almost anyone can run and you can do it almost anywhere.
Do you involve in running as a competitive racing. It started back to the Tailteann Games in Ireland in 1829 BCE