为什么要跑？

跑步是一种流行的运动方式，它可以帮助人们保持健康、减轻压力、增强免疫力等。但是，有些人可能并不理解为什么他们应该跑步。以下是几个原因，解释了为什么要跑步。

首先，跑步可以帮助人们保持健康。通过跑步，人们可以有效地提高心肺功能，增强心血管系统的功能，降低血压，减少心脏病的风险。此外，跑步还可以帮助人们减肥、塑形，使身体的各个部位更加匀称、健康。英文翻译为：Why do we run?

Running is a popular form of exercise that can help people maintain their health, relieve stress, enhance immunity, and more. However, some people may not understand why they should run. Here are several reasons explaining why people run.

Firstly, running can help people maintain their health. Through running, people can effectively improve their cardiopulmonary function, enhance the function of the cardiovascular system, lower blood pressure, and reduce the risk of heart disease. Additionally, running can help people lose weight, shape up, and make various parts of the body more uniform and healthy.

其次，跑步可以帮助人们减轻压力。在现代社会中，人们面临的工作、家庭、学业等方面的压力很大，而跑步可以帮助人们释放压力、放松身心。跑步可以促进身体的内啡肽分泌，提高心情，使人们感到愉悦、平静。英文翻译为：Secondly, running can help people relieve stress. In modern society, people face a lot of pressure from work, family, school, and other aspects, and running can help people release stress and relax. Running can promote the secretion of endorphins in the body, improve mood, and make people feel happy and calm.