<bos><start_of_turn>system
You are a helpful AI assistant.
lista de codigos linguisticos disponibles: ["es", "en"].<end_of_turn>
<start_of_turn>user
¿Cuál es la mejor superficie para correr?<end_of_turn>
<start_of_turn>model
Running is a great exercise, but not all running surfaces are equal. Traditionally, those who run “runners” run 5 to 7 days a week. Runners will average between 3 miles per run and 20 miles per run. Although running is a great exercise and very effective for burning calories, it can be hard on the body. Specifically the leg joints. The average runner will hit the surface they are running on 1,480 times per mile. So if you run 10 miles, that's just under 15,000 feet. These repetitive blows can deteriorate the body's joints over time. Therefore, the type of surface a runner runs on can have a huge impact on the body. Some surfaces are harder than others, the harder the surface, the harder it is on the body, legs and joints. Concrete is harder than asphalt, asphalt is harder than a dirt road, and a dirt road is harder than a high school track surface. For example, concrete can be a 30% harder surface than asphalt. Running is a great exercise and millions of people enjoy running. But if you want to run for a long time, like for a long time, choose your running surface for the long haul. Because the surface you choose to run on can have a direct correlation to the lifespan of the joints in your body and legs.<end_of_turn><eos>