xv Th e Importance of Leisure Activities 300 Th e Importance of Sleep 301 Th e Importance of Personal Hygiene 302 Section 12-2 Your Mental Health 303 Maintaining a Healthy Mental State 303 Using Defense Mechanisms 304 Stress and Your Health 304 Depression 306 When People Need Help 307 Section 12-3 Health Risks 308 Tobacco 308 Alcohol 309 Other Drugs 310 Sexually Transmitted Infections 310 Decisions Th at Affect Your Health 311 Section 12-4 Strategies for Healthful Personal Development 312 What Contributes to Quality of Life? 313 What Roadblocks Might Lie Ahead? 314 What Tactics Can Aid Personal Development? 315 Chapter 13 Chapter 13 Nutrition 322 Section 13-1 Nutrients at Work for You 323 Carbohydrates 324 Proteins 324 Fats 325 Minerals 326 Vitamins 327 Water 329 Dietary Reference Intakes 332 Section 13-2 Making Daily Food Choices 333 Infl uences on Food Choices 334 MyPlate 334 Th e Dietary Guidelines for Americans 336 Section 13-3 Nutrition Across the Lifespan 339 Needs of Pregnant Women and Infants 340 Needs of Children and Teens 342 Sports Nutrition 344 Needs of Adults 345 Special Diets and Nutrition Needs 346 Section 13-4 Balancing Calorie and Energy Needs 349 Meeting Energy Needs 349 Controlling Your Weight 350 Eating Disorders 353 Chapter 14 Chapter 14 Selecting Foods 358 Section 14-1 Menu Planning 359 Special Food Needs 359 Variety in Meals 360 When You Are the Meal Manager 361 Section 14-2 Shopping Decisions 364 Preparing a Shopping List 364 Deciding Where to Shop 365 Using Unit Pricing 366 Understanding Food Labeling 366