My favorite sport is running.In order to get enough time to do running every morning,I have developed a good habit of getting up early.I sometimes enjoy running in the late afternoon or even at night before going to bed,because it is good for sleep.
I like running for several reasons.Firstly,going in for this sport doesn't need several players.We can do it at any free time if we like.Besides,a pair of shoes is enough.Secondly,running is not limited by place.We can not only run on the playground,but also run on the paths or even along the street.Finally,since we do running outdoors,we can often breathe fresh air along a lake,on the paths in a forest,etc.
But sometimes we can't do running.For example,we shouldn't run in the rain,otherwise we might catch cold.Moreover,running too long a distance in the morning can make us too tired to concentrate on our study or work.Therefore,we should be careful about these two points.