ALLERGY, RESPIRATORY
Overweight Moms More Likely to Have Asthmatic Kids
Obesity May Raise Kids' Allergy Risk
Keep Asthma, Allergies at Bay for the Holidays
ALTERNATIVE MEDICINE
Bitter Melon Extract May Slow, Stop Breast Cancer
Memory Loss Help from Brain Supplement Prevagen
New Insights Show Ginseng Fights Inflammation
ANIMAL CARE
Separation Anxiety, Canine-Style
Safe Toys for Dogs
Animals Respond to Acupuncture's Healing Touch
BONES & JOINTS
Childhood Dairy Intake Boosts Bone Health Later On
Varicose, Spider Veins May Be Inevitable for Some
Healthy adults have potential autoimmune disease-causing cells
CANCER
Supplement Hampers Thyroid Cancer Treatment
Well Water Might Raise Bladder Cancer Risk
Immune Therapy May Aid Kids With Neuroblastoma
CAREGIVING
Omega-3 Fatty Acid May Help 'Preemie' Girls' Brains
More Than 60,000 Patients Risked Hepatitis Infections
Medication Errors Could Be Cut: Experts
CIRCULATORY SYSTEM
Laughter Can Boost Heart Health
Review Confirms Links Between Diet, Heart Health
Health Tip: Reduce Your Risk of Anemia
COSMETIC
Gum Chewing May Cut Craving for Snacks
Health Tip: Using Hair Dyes
Get Sugared!.... Its a sweet choice for hair removal
DENTAL, ORAL
An Oral Approach to Heart Disease
Health Tip: Help Prevent Cavities
Health Tip: At Risk for Gingivitis
DIABETES
Red-Grape Compound May Improve Diabetes
Fructose-Sweetened Drinks Up Metabolic Syndrome Risk
Findings Challenge Tight Glucose Control for Critically Ill Patients
DIET, NUTRITION
Atkins Diet Tougher on Heart After Weight Loss
Red Meat No No No But Oily Fish Yes Yes Yes
Health Tip: Your Body Needs Zinc
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Vest Monitors 'Individual' Air Pollution
Home Renovations by Affluent Families Can Unleash Lead Threat
Pilots May Face Greater Cancer Risk
EYE CARE, VISION
Just Like Skin, Eyes Can 'Burn' in Strong Sun
Certain Diabetes Drugs May Pose Eye Risk
Unconscious Learning: In the Eye of the Beholder?
FITNESS
Exercise Guards White Blood Cells Against Aging
You Can Get Great Exercise In The Garden
Antioxidants Blunt Exercise Benefit, Study Shows
GASTROINTESTINAL PROBLEMS
Peppermint Oil, Fiber Can Fight Irritable Bowel
Bowel Prep Harder on Women Than Men
Gum Chewing May Speed Colon Surgery Recovery
GENERAL HEALTH
Trans-Fat Ban In New York City Is Proving successful
What you need to know about swine flu.
Research Shows Genetic Activity of Antioxidants
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
'Cell Phone Elbow' -- A New Ill for the Wired Age
Imaging Sheds Light on How Acupuncture Works
E-Mailing Your Way to Healthier Habits
HEARING
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Chinese Red Yeast Rice May Prevent Heart Attack
Estrogen May Help Men's Hearts
Dark Chocolate May Lower Stroke Risk
INFECTIOUS DISEASE
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
Older Adults May Have Some Immunity to Swine Flu
Swine Flu Is Now a Pandemic Says W.H.O.
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Childhood Dairy Intake Boosts Bone Health Later On
Older People at Greater Risk of Swine Flu Death
Don't Leave Your Kids In The Car !
MEN'S HEALTH
Low Iron Levels Cut Cancer Risk in Men With PAD
Varicose Veins May Mask Larger Problem
Soy Linked to Low Sperm Count
MENTAL HEALTH
Heal Your LifeŽ Tips for Living Well
Brain Scans Show How Humans 'Hear' Emotion
Breast-Fed Baby May Mean Better Behaved Child
PHYSICAL THERAPY
PREGNANCY
Obesity May Affect Fertility in Young Womene
Sleeping Could Help Women Lose The Baby Fat
Pregnant Women Exposed To Certain Pollutants Could Lower Childs IQ
SENIORS
Rapid Weight Loss in Seniors Signals Higher Dementia Risk
Exercise Benefits Even the Oldest Old
Protein Deposits May Show Up Before Memory Problems Occur, Study Says
SEXUAL HEALTH
SLEEP DISORDERS
Moderate Aerobics May Ease Insomnia Symptoms
Sleeping Could Help Women Lose The Baby Fat
Meditation May Help Put Primary Insomnia to Bed
WOMEN'S HEALTH
Postmenopausal Women With Breast Cancer Face Joint Issues
Frankincense Provides Relief for Osteoarthritis
Acupuncture May Help Relieve Polycystic Ovary Syndrome
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Decline of Underweight Children in U.S. Continue to Fall

WEDNESDAY, July 15 (HealthDay News) -- The number of underweight children aged 2 to 19 in the United States decreased from 5.1 percent in 1971-1974 to 3.3 percent in 2003-2006, says a U.S. government study.

Being underweight can be caused by malnutrition or underlying health problems.

Researchers at the U.S. Centers for Disease Control and Prevention's National Center for Health Statistics analyzed results from the 2003-2006 National Health and Nutrition Examination Survey (NHANES) and compared them with results from the 1970s. They found that underweight decreased from 5.8 percent to 2.8 percent among children aged 2 to 5, from 5.3 percent to 2.7 percent among children aged 6 to 11, and from 4.7 percent to 3.8 percent among those aged 12 to 19.

Surveys before 1971 didn't include children aged 2 to 5, the authors of the report noted.

The NHANES participants underwent a household interview and a physical examination that included weight and height measurements taken by trained health technicians using standardized measuring procedures and equipment.

Children with body-mass index (BMI) values below the 5th percentile of the sex-specific BMI-for-age growth charts are classified as underweight.

SOURCES: U.S. Centers for Disease Control and Prevention, news release, July 15, 2009