1. Chapter 5 Lesson 1

2. Why do you Eat? Nutrients: substances in food that your body needs to function properly to grow, to repair itself, and to supply you with energy. Nutrients in food affect all sides of your health triangle.  Mental: how you feel  Social: how you function and act each day each day  Physical: how you grow and look

3. Physical Need Eating habits stem from both a physical need for food and the psychological desire for food. Food, air, and water are life’s basic needs. Hunger is a natural drive that protects you from starvation  Empty stomach  Walls contract, stimulating nerve endings  Nerve endings signal your brain to eat  After you eat the walls of the stomach are stretched and nerve endings are no longer stimulated By eating you satisfy the physical need for food. You feel “full”

4. Psychological Desire Mind’s desire for food Eating in response to appetite rather then hunger Appetite is the desire, rather than a need, to eat Learned Shaped by environment and emotions

5. Environment Culture  Food choices reflect the culture you live in as well as your ethnic background and perhaps your religious beliefs  Picnics, movies, ball games, holidays Teenagers have a culture of their own, eating practices seem to be part of it.

6. Environment Cont. Family and friends Likes and dislikes from childhood will influences food decisions throughout life As you grow older, friends will influence your food choices Trying new food at social gatherings, or foods at friends home

7. Environment Cont. Advertising Food ads are everywhere Make you aware of certain foods They try to persuade you of their benefits and/or taste Some claims of benefits are misleading you need to listen and judge advertising messages carefully

8. Environment Cont. Time and money Taste and nutrition are the top 2 factors that influence food shopping Cost, convenience, and food safety come next Busy life styles = easy to cook and eat foods, microwavable food Cost affect food choices = nutritious food is pricey

9. Emotions Boredom Stress Frustration Depressed Eating to relieve tension or boredom can result in overeating Some loose their appetite when they are upset or bored as a result they miss out on important nutrients

10. Your Eating Habits Many people are unable to distinguish between appetite and hunger They eat past the point of feeling full because their appetite continues to be stimulated after their hunger has been satisfied Many foods that stimulate the appetite are high in fat and calories

11. Nutrition Throughout Your Life Nutrition is the process by which the body takes in and uses food Getting nutrients your body needs enables you to have energy, feel and look your best and stay mentally alert Good nutrition can help prevent chronic diseases such as heart disease, certain cancers, diabetes, and stroke

12. Nutrition Throughout Your Life Adolescence is one of the fastest periods of growth During this time the body needs more energy from food and has higher nutrients needs than ever In spite of this teens skip meals and make poor food decisions