ALLERGY, RESPIRATORY
Know Your Asthma Triggers
Molecule in Skin May Link Eczema and Asthma
Keep Asthma, Allergies at Bay for the Holidays
ALTERNATIVE MEDICINE
Birds Don't Miss a Beat
Naprapathy: A Hands-On Approach to Pain Management
Uncover Why Turmeric Helps You Heal
ANIMAL CARE
Animals Respond to Acupuncture's Healing Touch
Separation Anxiety, Canine-Style
Beware of Dog Bites
BONES & JOINTS
B Cells Can Act Alone in Autoimmune Diseases
Scientists ID New Genes Tied to Crohn's Disease
Human Ancestors Put Best Foot Forward 1.5M Years Ago
CANCER
Adding Garlic Might Cut Cancer Risk
Meditation May Reduce Stress in Breast Cancer Patients
Many Cancer Patients Turn to Complementary Medicine
CAREGIVING
Many Alzheimer's Caregivers Admit to Abusive Behavior
Baby's Sleep Position May Not Affect Severity of Head Flattening
Birthmark or Blood Vessel Problem?
CIRCULATORY SYSTEM
An Apple a Day May Help Keep Heart Disease Away
Common Antioxidant Might Slow Parkinson's
Grapefruit-Heavy Diet Helped Spur Dangerous Clot
COSMETIC
New Genetic Links to Baldness Discovered
Contact Lenses Boost Kids' Self-Image
Get Sugared!.... Its a sweet choice for hair removal
DENTAL, ORAL
Health Tip: At Risk for Gingivitis
Good Oral Hygiene May Protect Against Heart Infections
Biological Product Shows Promise Against Gum Disease
DIABETES
Formula Puts Doctor, Patient Glucose Readings on Same Page
Abnormal Heart Rhythm Boosts Death Risk for Diabetics
Drug May Not Help Diabetes-Related Eye Damage
DIET, NUTRITION
Vitamin D Vital for the Heart
Vinegar Might Help Keep Off Pounds
Eating Lots Of Vegetables, Olive Oil May Extend Life
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Preparing for a Chlorine Gas Disaster
Cleaning House May Be Risky for Women With Asthma
Climate Change Linked to Longer Pollen Seasons
EYE CARE, VISION
Glaucoma Associated With Reading Impairments in Elderly
Brain Pressure More Likely to Cause Vision Loss in Men
Eye Disease, Cognitive Decline Linked in Study
FITNESS
Seniors Who Exercise Help Their Health
Mom and Baby Alike May Benefit From Exercise
Exercise Guards White Blood Cells Against Aging
GASTROINTESTINAL PROBLEMS
Soothing Imagery May Help Rid Some Kids of Stomach Pain
New Guidelines Issued for Management of IBS
New Yogurt May Ease Stomach Ulcers
GENERAL HEALTH
Even Young Kids Can Learn CPR
Afternoon Nap Might Make You Smarter
Spot light on Dani Antman New Lionheart teacher
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
HEALTH & TECHNOLOGY
Save Your Aging Brain, Try Surfing The Web
Magnet Therapy May Ease Hard-to-Treat Depression
Combating Myths About Seasonal Allergies
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Fish Oil Supplements Help With Heart Failure
Fondness for Fish Keeps Japanese Hearts Healthy
Fewer Heart Attacks After England Goes Smoke-Free
INFECTIOUS DISEASE
Swine Flu Loves a Crowd
Surgical Masks Could Prevent Flu, Maybe
More Medicinal Uses for Pomegranate
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Exercise During Pregnancy Keeps Newborn Size Normal
Too Many Infants Short on Vitamin D
3 Home Habits Help Youngsters Stay Slim
MEN'S HEALTH
Drinking Green Tea May Slow Prostate Cancer
Physical Activity May Prolong Survival After Colon Cancer
More Vitamin C May Mean Less Chance of Gout
MENTAL HEALTH
Cinnamon Breaks Up Brain Plaques, May Hold Key to Fighting Alzheimer’s
Estrogen May Help Men's Hearts
Environmental Chemicals May Affect Male Reproduction
PAIN
Alleviating Rheumatoid Arthritis
Are We Exercising Pain Away? Not So Much.
'Cell Phone Elbow' -- A New Ill for the Wired Age
PHYSICAL THERAPY
PREGNANCY
Acupuncture May Ease Depression During Pregnancy
Alternative Treatments May Boost IVF Success
Heart Defects in Newborns Linked to Antidepressants
SENIORS
Video Gaming Just Might Fight Aging
Tai Chi May Help Ease Fibromyalgia
Keeping Mentally Active Seems To Keep The Brain Active
SEXUAL HEALTH
SLEEP DISORDERS
Daylight Savings: Not a Bright Time for All
Exercising Throat Muscles May Relieve Sleep Apnea
Pay Attention to Signs That Say You're Too Fatigued to Drive
WOMEN'S HEALTH
Exercise, Weight Control May Keep Fibromyalgia at Bay
Pre-Pregnancy Weight Linked to Babies' Heart Problems
Natural Oils Help Lower Body Fat For Some
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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