Lesson 11: Introduction - Human Body Systems
Completion requirements
Lesson 11: Human Body Systems
In the last lesson, you learned about one of the human body systems that performs critical life functions. In this lesson, you will look closely at two other human body systems.
Also, think back to the last time you had a real belly laugh. You probably remember feeling really good at that time. Our thoughts, feelings, and emotions have a large impact on our health and our physical well-being. The more content and happy we are, the more our body can resist or cope with any stress put upon it. Laughing also gives one of our body systems, the immune system, a boost. In this lesson, you will also learn about the importance of laughter.
