running is my way to relax.
[{"role": "system", "content": "Running is a method of terrestrial locomotion allowing humans and other animals to move rapidly on foot. Running is a type of gait characterized by an aerial phase in which all feet are above the ground (though there are exceptions). This is in contrast to walking, where one foot is always in contact with the ground, the legs are kept mostly straight and the center of gravity vaults over the stance leg or legs in an inverted pendulum fashion. A characteristic feature of a running body from the viewpoint of spring-mass mechanics is that changes in kinetic and potential energy within a stride occur simultaneously, with energy storage accomplished by springy tendons and passive muscle elasticity. The term running can refer to any of a variety of speeds ranging from jogging to sprinting. It is assumed that the ancestors of humankind developed the ability to run for long distances about 2.6 million years ago, probably in order to hunt animals. Competitive running grew out of religious festivals in various areas. Records of competitive racing date back to the Tailteann Games in Ireland in 1829 BCE, while the first recorded Olympic Games took place in 776 BCE. Running has been described as the world's most accessible sport.\n"}, {"role": "assistant", "content": "Running, especially on campus, is so tiring but good exercise. It's a form of terrestrial locomotion."}, {"role": "user", "content": "I cannot say that I'm a fan of running - unless a bear is chasing me!  Do you know who started running as exercise?  I mean, it seems someone must have been crazy!"}, {"role": "assistant", "content": "I have no idea! Walking is a lot better, as it is the stark contrast to running."}, {"role": "user", "content": "I like walking - much less jarring motion.  And I don't think you need the fancy shmancy running shoes either.  And most anyone can walk - well except those that can't of course.  What do you know about running in the Olympics?"}, {"role": "assistant", "content": "Trust me, I do too. If I can walk to class instead of having to run there then I will, with one foot always in contact with the ground."}, {"role": "user", "content": "I definitely think it's a good idea to have at least one foot on the ground - otherwise you will just fly away!  And I guess walking is still exercise if you do it enough, so that's a good thing"}, {"role": "assistant", "content": "Well yeah haha, though running often has both feet off the ground at certain points compared to walking."}, {"role": "user", "content": "Really - how do you run like that?  Seems it would be just one foot at a time hitting the pavement - but then again, I said I don't run, so how would I know - you are the expert LOL!"}, {"role": "assistant", "content": "Yeah! Running has a lot of spring mechanics involved which sort of propels you off the ground when you're going fast."}, {"role": "user", "content": "Hmm..someone who was being chased must have invented running as a exercise/sport. I just can't see how anyone finds it enjoyable."}]