I've been dancing since I was 14, when my best friend asked me to go to an after-school dance class with her. I enjoyed that dance class and from then on, I began to dance. After every class, I always have to stretch out(拉伸)my legs and back! It feels like as much exercise as a sport.
However, most people think dancing isn't a sport. They think it's an art form(艺术形式). It is easy to see why those people think so. Dancing to music is relaxing and enjoyable, just like watching a play.
On the other hand, many people think that dancing is a sport. No matter what kind of dance you do, you always use all of your muscles (肌肉). So, dancers are often just asathleticas football players, runners or swimmers.
In my opinion, dancing is both a sport and an art form. It has brought me great fun and improved my health.
Anyway, whether you think of dancing to be a sport or an art form, the important thing is to enjoy it! Dancing is a really fun way to exercise!