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Hair Loss Hair Loss Caused by Lack of Protein Hair Loss From Cancer Treatment Hair Loss, Hair Transplant for Hair Loss: Should I Take Medicine to Regrow Hair? Hair Transplant Surgery Hairy Cell Leukemia Treatment (PDQ®): Treatment - Health Professional Information [NCI] Hairy Cell Leukemia Treatment (PDQ®): Treatment - Patient Information [NCI] Halitosis (Bad or Changed Breath) Hammer Toe, Phalangeal Head Resection for Hammer, Claw, and Mallet Toes Hammer, Claw, or Mallet Toe: Should I Have Surgery? Hamstring Muscles Hand, Finger, and Wrist Injuries Hand, Finger, and Wrist Problems, Noninjury Hand-Foot-and-Mouth Disease Handling a Dead Bird Handling Sadness and Yearning After a Major Loss Handling Wild Birds Hand-Washing Hantavirus Pulmonary Syndrome (HPS) Hantavirus: Advice for Hikers and Campers Hantavirus: Cleaning Up Rodent-Infested Areas Hantavirus: Keeping Rodent Numbers Down Hantavirus: Questions Your Doctor May Ask Harmful Noise Levels Hay Fever Hay Fever and Other Seasonal Allergies Head Injuries in Children: Problems to Watch For Head Injury, Age 3 and Younger Head Injury, Age 4 and Older Head Lice Headache Prevention: Posture and Body Mechanics Headaches Headaches Headaches in Children Headaches, Migraine Headaches, Tension-type Headaches: Finding and Avoiding Triggers Headaches: Managing a Headache Headaches: Should I Have Imaging Tests to Find Out What's Causing My Headaches? Headaches: Should I Take Medicine to Prevent Migraines? Headaches: Should I Take Prescription Medicine for Tension Headaches? Healing Through Humor Healing Touch Health and Safety, Ages 2 to 5 Years Health and Safety, Birth to 2 Years Health Care Agent Health Care Professionals Health Claims on Food Labels Health Decisions Health Problems Associated With Adult Obesity Health Risk Due to Weight Calculator Health Risks Related to Smokeless Tobacco Health Screening Tests, Which do You Need? Health Screening: Finding Health Problems Early Health Screenings: Should I Buy Commercial Tests? Health Tracking Forms and Checklists Healthcare-Associated Pneumonia (Nosocomial Pneumonia) Healthwise Self-Care Checklist Healthy Aging Healthy Aging: Is It Time to Stop Driving? Healthy Attitudes Toward Food and Exercise Healthy Eating Healthy Eating Healthy Eating and Older Adults Healthy Eating for Children Healthy Eating in Children: Problems Caused by Poor Nutrition Healthy Eating in Children: Things That Influence Food Choices Healthy eating on a budget: Quick tips Healthy Eating to Decrease Stress Healthy Eating: Changing Your Eating Habits Healthy Eating: Cutting Unhealthy Fats From Your Diet Healthy Eating: Eating Heart-Healthy Foods Healthy Eating: Eating Less Sodium Healthy Eating: Getting Support When Changing Your Eating Habits Healthy Eating: Helping Your Child Learn Healthy Eating Habits Healthy Eating: Influences on Eating Behavior Healthy Eating: Making Healthy Choices When You Eat Out Healthy Eating: Making Healthy Choices When You Shop Healthy Eating: Overcoming Barriers to Change Healthy Eating: Recognizing Your Hunger Signals Healthy Eating: Starting a Plan for Change Healthy Eating: Staying With Your Plan Healthy Eating: Taking Calcium and Vitamin D Healthy Habits for Kids Healthy Habits to Prevent or Reduce Problems From Osteoporosis Healthy meals: Quick tips for making Healthy Muscles Healthy snacks: Quick tips for making Healthy Weight Calculator for a Child Healthy Weight Calculator for a Teen Hearing Aids Hearing Loss Hearing Loss: Should I Get Hearing Aids? Hearing Protectors Heart and Circulation Heart Arrhythmias and Exercise Heart Attack and Smoking Risk Calculator Heart Attack and Stroke in Women: Reducing Your Risk Heart Attack and Stroke Risk Screening Heart Attack and Stroke Risk Screening Heart Attack and Unstable Angina Heart Attack Risk Calculator Heart Attack, Beta-Blockers for Heart Attack: How to Prevent Another One Heart attack: Living with a pacemaker or ICD Heart Block Heart Catheterization for Congenital Heart Defects Heart Defects (Congenital), Heart Catheterization for Heart Disease (Coronary Artery), Angiotensin-Converting Enzyme (ACE) Inhibitors for Heart Failure Heart Failure and Sexual Activity Heart Failure and Sleep Problems Heart Failure Complications Heart Failure Daily Action Plan Heart Failure Stages Heart Failure Symptoms Heart Failure Types Heart Failure With Preserved Ejection Fraction (Diastolic Heart Failure) Heart Failure With Reduced Ejection Fraction (Systolic Heart Failure) Heart Failure, Aldosterone Receptor Antagonists for Heart Failure, Angiotensin II Receptor Blockers (ARB) for Heart Failure, ARBs (Angiotensin II Receptor Blockers) for Heart Failure, History and Physical Examination for Heart Failure: Activity and Exercise Heart Failure: Avoiding Colds and Flu Heart Failure: Avoiding Medicines That Make Symptoms Worse Heart Failure: Avoiding Triggers for Sudden Heart Failure Heart Failure: Checking Your Weight Heart Failure: Compensation by the Heart and Body Heart Failure: Disease Management Programs Heart Failure: Eating a Healthy Diet Heart Failure: Eating Out on a Low Salt Diet Heart Failure: Less Common Symptoms Heart Failure: Should I Get a Pacemaker (Cardiac Resynchronization Therapy)? Heart Failure: Should I Get an Implantable Cardioverter-Defibrillator (ICD)? Heart Failure: Taking Medicines Properly Heart Failure: Tips for Caregivers Heart Failure: Tips for Easier Breathing Heart Failure: Watching Your Fluids Heart Health: Walking for a Healthy Heart Heart Murmur Heart Rate Problems: Should I Get a Pacemaker? Heart Rhythm Problems and Driving Heart Rhythm Problems: Diary of Symptoms Heart Rhythm Problems: How to Travel Safely Heart Rhythm Problems: Should I Get an Implantable Cardioverter-Defibrillator (ICD)? Heart Rhythm Problems: Symptoms Heart Tests: When Do You Need Them? Heart Transplant Heart Valve (Aortic) Regurgitation Heart Valve Disease Heart Valve Disease and Pregnancy Heart Valve Problems: Should I Choose a Mechanical Valve or Tissue Valve to Replace My Heart Valve? Heart Valve Replacement Surgery Heart Valve Replacement Surgery: Life After Surgery Heart Valve Replacement: How to Prepare Heart Valve Surgery: Recovery Heartbeat, Changes Heartburn Heartburn (GERD): Controlling heartburn by changing your habits Heartburn: Changing Your Eating Habits Heartburn: Reducing Pressure on Your Stomach Heart-healthy diet, Eating a Heart-Healthy Eating Heart-Healthy Eating: Fish Heart-Healthy Lifestyle Heat After an Injury Heat Rash Heat Waves Heat-Related Illnesses Heatstroke First Aid Heatstroke Prevention: Acclimating to the Heat Heatstroke Prevention: What to Wear Heatstroke: Emergency Symptoms Heavy Menstrual Periods Heavy Sweating Heel Bursitis or Tendon Injury: Preventing Pain Heel Pain (Plantar Fasciitis) Heimlich Maneuver Heimlich Maneuver for Adults and Children Older Than 1 Year Helicobacter Pylori Bacteria HELLP Syndrome and Preeclampsia Help for Anger Problems Help Your School-Age Child Develop Social Skills Help Your Working Teen Balance Responsibilities and Set Priorities Helping a Family Member Who Has PTSD Helping a Loved One After Coronary Artery Bypass Graft Surgery Helping a Person During a Seizure Helping Adolescents Develop More Mature Ways of Thinking Helping Children During Immunizations Helping Children With Disabilities Stay Active Helping Kids Handle Peer Pressure Helping Someone During a Panic Attack Helping Your Child Avoid Tobacco, Drugs, and Alcohol Helping Your Child Build a Healthy Body Image Helping Your Child Build Inner Strength Helping Your Child Transition Into Middle School or Junior High Helping Your Child Who Is Overweight Helping Your Newborn Learn Helping Your School-Age Child Learn About the Body Helping Your Teen Become a Safe Driver Helping Your Teen Follow a Gluten-Free Diet Hemangioma Hemispherectomy for Epilepsy Hemochromatosis Hemochromatosis Genetic Screening Hemodialysis Hemodialysis Compared to Peritoneal Dialysis Hemophilia Hemophilia, Clotting Factor Replacement for Hemophilia: Preventing Bleeding Episodes Hemophilia: Treatment for People Who Have Inhibitors Hemophilia: Understanding Genetic Risk Hemoptysis Hemorrhage, Diverticular Hemorrhagic Stroke Hemorrhoid Surgery (Hemorrhoidectomy) Hemorrhoidectomy for Hemorrhoids Hemorrhoids Hemorrhoids, Infrared Photocoagulation for Hemorrhoids, Rubber Band Ligation for Hemorrhoids: Which Treatment Should I Use? Henna Tattoos (Mehndi) Hepatitis A Hepatitis A and Undercooked Shellfish Hepatitis A Vaccine: What You Need to Know Hepatitis B Hepatitis B and C: Risk of Liver Cancer Hepatitis B Treatment Recommendations Hepatitis B Vaccine: What You Need to Know Hepatitis B Viral DNA Hepatitis B: How to Avoid Spreading the Virus Hepatitis B: Postvaccination Test for Immunity Hepatitis B: Should I Be Tested? Hepatitis B: Should I Take Antiviral Medicine for Chronic Hepatitis B? Hepatitis C Hepatitis C Genotypes Hepatitis C Home Test Hepatitis C: Your Risk for Cirrhosis Hepatitis D Hepatitis E Hepatitis Immunoglobulin (HBIG) Hepatitis Panel Hernia, Hiatal Hernia, Inguinal Hernia, Inguinal, Laparoscopic Repair of Herniated Disc, Discectomy and Microdiscectomy for Herniated Disc, Medical History and Physical Examination for Herniated Disc, Percutaneous Discectomy for Herniated Neck Disc Heroin Herpes, Genital Hiatal Hernia Hiatal Hernia and GERD Hib (Haemophilus Influenzae Type B) Vaccine: What You Need to Know Hiccups Hidden Gluten Hidradenitis Suppurativa High Blood Cholesterol, Bile Acid Sequestrants for High Blood Cholesterol, Fibrinic Acid Derivatives for High Blood Cholesterol, Nicotinic Acid for High Blood Cholesterol, Statins for High Blood Pressure High Blood Pressure High Blood Pressure During Pregnancy High Blood Pressure in African Americans High Blood Pressure in Children High Blood Pressure Treatment Guidelines High Blood Pressure, Angiotensin II Receptor Blockers (ARBs) for High Blood Pressure, Beta-Blockers for High Blood Pressure, Calcium Channel Blockers for High Blood Pressure, Direct Renin Inhibitors for High Blood Pressure, Diuretics for High Blood Pressure, Physical Examination for High Blood Pressure, Renin Inhibitors for High Blood Pressure, Transient Ischemic Attack, and Stroke High Blood Pressure, Vasodilators for High Blood Pressure: Checking Your Blood Pressure at Home High Blood Pressure: Nutrition Tips High Blood Pressure: Over-the-Counter Medicines to Avoid High Blood Pressure: Should I Take Medicine? High Blood Pressure: Taking Medicines Properly High Blood Pressure: Using the DASH Diet High Blood Sugar Emergencies from Diabetes, Preventing High Blood Sugar from Diabetes High blood sugar in children with diabetes, Preventing High Cholesterol High Cholesterol, Bile Acid Sequestrants for High Cholesterol, cholesterol absorption inhibitors for High Cholesterol, Fibrinic Acid Derivatives for High Cholesterol, Nicotinic Acid for High Cholesterol: Effect of Food on Cholesterol High Cholesterol: Healthy Food Choices High Cholesterol: How a Dietitian Can Help High Cholesterol: Making Lifestyle Changes High Triglycerides High-Dose Vitamin C (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI] High-Dose Vitamin C (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI] High-Output Heart Failure High-Potassium Foods High-Pressure Injection Wounds High-Protein Foods for Wound Healing High-Risk Pregnancy High-Risk Sexual Behavior Hip Bursitis or Tendon Injury: Preventing Pain Hip Dysplasia, Congenital Hip Dysplasia, Developmental Hip Dysplasia: Caring for Your Child in a Body (Spica) Cast Hip Fracture Hip Fracture Repair (Hip Pinning) Hip Fractures: What Increases Your Risk Hip Injuries, Age 11 and Younger Hip Injuries, Age 12 and Older Hip Problems, Age 11 and Younger Hip Problems, Age 12 and Older Hip Replacement Surgery, Deciding About Hip Resurfacing Arthroplasty Hirschsprung's Disease History and Physical Exam for Atrial Fibrillation History and Physical Exam for Heart Failure History and Physical Exam for Low Back Pain History and Physical Exam for Osteoarthritis History and Physical Examination for Fast Heart Rate History and Physical Examination for Tachycardia History for Premenstrual Syndrome (PMS) HIV (Human Immunodeficiency Virus) Infection HIV and AIDS: Who Is Affected HIV and Cytomegalovirus HIV and Exercise HIV and Fatigue HIV and Pregnancy HIV and Weight Loss HIV Home Care HIV Infection, Counseling for HIV Infection, Medical History and Physical Examination for HIV Screening HIV Symptoms in Children HIV Testing: Should I Get Tested for Human Immunodeficiency Virus? HIV Treatment in Children HIV Viral Load HIV: Antiretroviral Therapy (ART) HIV: Giving Support HIV: Human Immundeficiency Virus Infection HIV: Nonprogressors and HIV-Resistant People HIV: Preventing Infections HIV: Preventing Other Infections When You Have HIV HIV: Risks of Sexual Contact HIV: Stages of Infection HIV: Taking Antiretroviral Drugs HIV: Tips for Caregivers to Avoid Infection HIV: Why Healthy Eating Matters HIV-2 Hoarding Disorder Hodgkin's Lymphoma Hodgkin's Lymphoma, Radiation Therapy for Home Health Supplies Home Oxygen Therapy Home Remedies for Bites and Stings Home Test for Protein in Urine Home Treatment for Second-Degree Burns Homeopathy Homocystinuria Hordeolum Hormonal Birth Control: Risk of Blood Clots Hormonal Factors in Erection Problems Hormone Replacement Therapy, Deciding About Hormone Tests to Check for Undescended Testicles Hormone Therapy for Dysfunctional Uterine Bleeding, Deciding About Hormone Therapy for Endometriosis, Deciding About Hormone Therapy for Prostate Cancer (Androgen Deprivation Therapy, or ADT) Hormone Treatment for Breast Cancer Hormones Hospice Hospice Care Hospital Discharge Planning Hospital Isolation Rooms Hospital Patient Advocates Hospital Policies and Breastfeeding Hostility and Anger Hot Flashes and Menopause Hot Flashes and Night Sweats (PDQ®): Supportive care - Health Professional Information [NCI] Hot Flashes and Night Sweats (PDQ®): Supportive care - Patient Information [NCI] Hot flashes, Managing Hot Weather, Tips for Staying Active How a Scrape Heals How ADHD Affects Your Child How Adolescent Thinking Develops How Asthma Develops in Children How Birth Control Methods Prevent Pregnancy How Common Is Lumbar Spinal Stenosis? How Cystic Fibrosis Affects Breathing and the Lungs How Cystic Fibrosis Affects Digestion and the Pancreas How Cystic Fibrosis Affects the Bones How Cystic Fibrosis Affects the Reproductive System How Cystic Fibrosis Affects the Sweat Glands How Diabetes Causes Blindness How Diabetes Causes Foot Problems How Diabetes Causes Nerve Disease How Erections Occur How Normal Vision Develops How Pregnancy (Conception) Occurs How Reading Helps Language Development How Storytelling Helps Children Express Feelings About Loss How the Body Controls Blood Sugar How the Heart Works How to Find Sodium How to Get Rid of Medicines How to Get Up Safely After a Fall How to Recognize Poison Ivy, Oak, and Sumac How to Stop Bleeding From a Head Wound How to Take Birth Control Pills How to Teach Your Child by Example How to Track Your Stress How to Transport a Piece of Tongue How We Hear How Your Joints Work HPS (Hantavirus Pulmonary Syndrome) HPV (Human Papillomavirus) Vaccine Gardasil®: What You Need to Know HPV (Human Papillomavirus) Vaccine: What You Need to Know HPV (Human Papillomavirus, Genital Warts) HPV: Should I Get the Vaccine? HPV: Should My Child Get the Vaccine? HRT (Hormone Replacement Therapy), Deciding About Human and Animal Bites Human Immunodeficiency Virus (HIV) Infection, Medical History and Physical Examination for Human Immunodeficiency Virus Infection, Counseling for Human Papillomavirus (Genital Warts) Biopsy Human Papillomavirus (Genital Warts) in Men, Physical Examination for Human Papillomavirus (Genital Warts), Cryotherapy for Human Papillomavirus (Genital Warts), Electrocautery for Human Papillomavirus (Genital Warts), Gynecological Examination for Human Papillomavirus (Genital Warts), Laser Surgery for Human Papillomavirus (Genital Warts), LEEP (Loop Electrosurgical Procedure) for Human Papillomavirus (Genital Warts), Surgical Removal of Human Papillomavirus (HPV) Vaccine, Deciding About Human Papillomavirus (HPV, Genital Warts) Humor Therapy Hunger, Fullness, and Appetite Signals Huntington's Disease Genetic Test Hydatidiform Mole Hydrazine Sulfate (PDQ®): Integrative, alternative, and complementary therapies - Health Professional Information [NCI] Hydrazine Sulfate (PDQ®): Integrative, alternative, and complementary therapies - Patient Information [NCI] Hydrocele Hydrocele, Congenital Hydrocephalus, Congenital Hydrocortisone for Itching Hydrotherapy Hyperactivity Hyperbaric Oxygen Therapy for Carbon Monoxide Poisoning Hyperbilirubinemia in Newborns Hypercholesterolemia Hypercholesterolemia, Bile Acid Sequestrants for Hypercholesterolemia, Fibrinic Acid Derivatives for Hypercholesterolemia, Nicotinic Acid for Hypercholesterolemia, Statins for Hyperglycemia in children with diabetes, Preventing Hyperglycemia, Diabetic Hyperglycemic Emergencies from Diabetes, Preventing Hyperopia (Farsightedness) Hyperparathyroidism Hypertension (High Blood Pressure) Hypertension, Angiotensin II Receptor Blockers (ARBs) for Hypertension, Beta-Blockers for Hypertension, Calcium Channel Blockers for Hypertension, Direct Renin Inhibitors for Hypertension, Diuretics for Hypertension, Physical Examination for Hypertension, Renin Inhibitors for Hypertension, Vasodilators for Hypertension: Checking your blood pressure at home Hypertension: Taking medicines properly Hypertension: Using the DASH diet Hyperthyroidism Hyperthyroidism, Radioactive Iodine for Hyperthyroidism: Age-Related Symptoms Hyperthyroidism: Graves' Ophthalmopathy Hyperthyroidism: Medicines for Symptoms Hyperthyroidism: Should I Use Antithyroid Medicine or Radioactive Iodine? Hypertriglyceridemia Hypertrophic Cardiomyopathy Hypertrophic Cardiomyopathy Types Hypertrophic Cardiomyopathy: Risk of Sudden Death Hyperventilation Hypnosis Hypoglycemia (Low Blood Sugar) in People Without Diabetes Hypoglycemia from taking insulin, Dealing with Hypoglycemia from taking oral diabetes medicine, Dealing with Hypoglycemia in children with diabetes, Preventing Hypoglycemia with Gestational Diabetes, Dealing With Hypoglycemia, Diabetic Hypopharyngeal Cancer Treatment (PDQ®): Treatment - Health Professional Information [NCI] Hypopharyngeal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] Hypospadias Hypothermia Hypothermia and Cold Temperature Exposure Hypothyroidism Hypothyroidism in Infants, Children, and Teens Hysterectomy Hysterectomy and Oophorectomy to Treat Endometriosis, Deciding About Hysterectomy and Oophorectomy: Should I Use Estrogen Therapy (ET)? Hysterectomy for Endometrial Cancer Hysterectomy for Ovarian Cancer Hysterectomy Questions Hysterectomy: Concerns About Sex Hysterectomy: Emotional Reactions Hysterectomy: Should I Also Have My Ovaries Removed? Hysterectomy: Types of Surgical Incisions Hysteroscopy for Abnormal Uterine Bleeding