ix Contents Unit 1 Taking Charge of Your Health and Wellness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Chapter 1 Understanding Your Health and Wellness. . . . . . . . . . 4 Lesson 1.1 Learning About Health and Wellness. . . . . 6 Lesson 1.2 Recognizing Factors That Affect Health and Wellness. . . . . . . . . . . . . . . . 14 Lesson 1.3 Building Skills for Health and Wellness. . . 22 Chapter 1 Review and Assessment. . . . . . . . . . . . . . . . 33 Chapter 2 Knowing How Your Body Works. . . . . . . . . . . . . . . . . . . . 36 Lesson 2.1 Supporting and Moving the Body. . . . . . . 38 Lesson 2.2 Moving and Exchanging Substances . . . . 46 Lesson 2.3 Digesting and Removing Substances. . . 54 Lesson 2.4 Controlling and Regulating the Body. . . . 62 Chapter 2 Review and Assessment. . . . . . . . . . . . . . . . 71 Chapter 3 Developing Good Personal Hygiene. . . . . . . . . . . . . . . . 74 Lesson 3.1 Caring for Your Skin, Hair, and Nails. . . . . 76 Lesson 3.2 Keeping Your Mouth, Eyes, and Ears Healthy. . . . . . . . . . . . . . . . . . . . 87 Chapter 3 Review and Assessment. . . . . . . . . . . . . . . . 97 Chapter 4 Getting the Sleep You Need . . . . . . . . . . . . . . . . . . . . . . . 100 Lesson 4.1 Understanding Sleep. . . . . . . . . . . . . . . . . 102 Lesson 4.2 Recognizing Sleep Disorders. . . . . . . . . . 109 Lesson 4.3 Developing Strategies for Getting Enough Sleep. . . . . . . . . . . . . . . . . . . . . 115 Chapter 4 Review and Assessment. . . . . . . . . . . . . . . 123