![Five people in a yoga studio doing a yoga pose called three-legged dog: both hands are on the mat, head is down, one foot on the floor about a yard behind the hands, the other foot is extended straight up in the air.](https://s3-us-west-2.amazonaws.com/courses-images-archive-read-only/wp-content/uploads/sites/1110/2016/02/02025037/4440275958_7b5cd3346d_b-1024x768.jpg)
If you are in a bad mood, go for a walk. If you are still in a bad mood, go for another walk.
—Hippocrates, Greek physician
LEARNING OBJECTIVES
By the end of this section, you will be able to:
- Describe physical fitness and the major types of exercise
- Identify the benefits of regular exercise, for both body and brain
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