i can run very fast for long distances.
[{"role": "system", "content": "Long-distance running, or endurance running, is a form of continuous running over distances of at least eight kilometres (5\u00a0miles). Physiologically, it is largely aerobic in nature and requires stamina as well as mental strength. Among mammals, humans are well adapted for running significant distances, and particularly so among primates. The endurance running hypothesis suggests that running endurance in the \"Homo\" genus arose because travelling over large areas improved scavenging opportunities and allowed persistence hunting. The capacity for endurance running is also found in migratory ungulates and a limited number of terrestrial carnivores, such as dogs, wolves and hyenas. In modern human society, long-distance running has multiple purposes: people may engage in it for physical exercise, for recreation, as a means of travel, for economic reasons, or for cultural reasons. Long distance running can also be used as a means to improve cardiovascular health. Running improves aerobic fitness by increasing the activity of enzymes and hormones that stimulate the muscles and the heart to work more efficiently. Endurance running is often a component of physical military training and has been so historically.\n"}, {"role": "assistant", "content": "Long distance running, which many call endurance running, needs to be at least 5 miles to be considered this type."}, {"role": "user", "content": "I wonder why it is exactly 5 miles then. I've never tried this before."}, {"role": "assistant", "content": "I don't know how they came up with that mandatory set limit, but I know long distance running is great in improving a person's cardiovascular health."}, {"role": "user", "content": "Oh I'm sure it is! It must also be great for your legs."}, {"role": "assistant", "content": "Yes! It's really mainly aerobic, and does really need a person that has a lot of stamina and mental strength too."}, {"role": "user", "content": "That makes sense, I need to get out and run a bit more since my stamina is pretty meh."}, {"role": "assistant", "content": "Me too! The military often includes endurance running for their training and has since they began."}, {"role": "user", "content": "That's smart, since so much of the military is endurance based."}, {"role": "assistant", "content": "Exactly, so endurance running will increase the hormones and enzymes that makes muscles to become stimulated, which makes the heart work much better. Of course this is definitely need in the military!"}, {"role": "user", "content": "So that's why cardio helps the heart so much? Cool!"}]