Part 6 focuses on giving you more information about 2 specific factors that can have an immense effect on your immune system: sleep and exercise.  Having a good understanding of these two factors can help you maintain good health.  Here's what Part 6 is all about:

• How sleep affects your immune system
• Good sleep habits
• How exercise affects your immune system
• Exercise and stress
• Exercise doesn't have to be expensive, complex, or even difficult
• Other resources about sleep and exercise