ALLERGY, RESPIRATORY
Molecule in Skin May Link Eczema and Asthma
Know Your Asthma Triggers
Childhood Food Allergies on the Rise
ALTERNATIVE MEDICINE
Grapefruit Compound Inhibits Hepatitis C Virus
Music Therapy For Prehistoric Man?
Uncover Why Turmeric Helps You Heal
ANIMAL CARE
'Comfort Dogs' Come to Emotional Rescue
Separation Anxiety, Canine-Style
Safe Toys for Dogs
BONES & JOINTS
Tips to Ease an Aching Back
Scientists Discover How Osteoarthritis Destroys Cartilage
High Birth Weight Doubles Risk of Rheumatoid Arthritis
CANCER
Occaisonal Dieting May Cut Breast Cancer, Study Says
Antioxidants Pose No Melanoma Threat
Physical Activity May Prolong Survival After Colon Cancer
CAREGIVING
Flu Strikes a Milder Blow This Season
Hospital Practices Influence Which Moms Will Breast-Feed
Tainted China Formula Caused High Rate of Kidney Stones in Kids
CIRCULATORY SYSTEM
Years of Exposure to Traffic Pollution Raises Blood Pressure
Potassium-Rich Foods May Cut Stroke, Heart Disease Risk
Secondhand Smoke Quickly Affects Blood Vessels
COSMETIC
Get Sugared!.... Its a sweet choice for hair removal
Science May Banish Bad Hair Days
Gum Chewing May Cut Craving for Snacks
DENTAL, ORAL
Health Tip: At Risk for Gingivitis
Acupuncture May Ease Anxiety Over Dental Work
Scientists Find Gene for Tooth Enamel
DIABETES
Treatment for Type 2 Diabetes Updated
Abnormal Heart Rhythm Boosts Death Risk for Diabetics
Laughter May Lower Heart Attack Risk in Diabetics
DIET, NUTRITION
Eating Less May Slow Aging Process
Oregano Shown to be the Most Powerful Culinary Herb
Lose Weight, Sleep Apnea May Improve
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Topical Drugs May Pollute Waterways
Green Areas Lower Health Inequities Between Rich, Poor
Chemicals in Carpets, Non-Stick Pans Tied to Thyroid Disease
EYE CARE, VISION
Impotence Drugs Don't Harm Vision: Study
Thyroid Problems Boost Glaucoma Risk
Protein Might One Day Prevent Blindness
FITNESS
Higher Fitness Levels Tied to Lower Heart, Death Risks
Avoiding a Holiday Season of Discontent
Run for Your Life
GASTROINTESTINAL PROBLEMS
Japanese Herbals May Ease Gastro Woes
Intestinal Bacteria Trigger Immune Response
HRT Use Raises Risk of Stomach Trouble
GENERAL HEALTH
Adults Need To Get Thier Food Facts Straight
The Brain Comes Alive With the Sounds of Music
Afternoon Nap Might Make You Smarter
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
Using Light Therapy to Silence Harmful Brain Activity
Magnet Therapy May Ease Hard-to-Treat Depression
Airport Full Body Scanners Pose No Health Threat: Experts
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Soy Protein Doesn't Lower Cholesterol
Research Shows Genetic Activity of Antioxidants
Dark Chocolate May Lower Stroke Risk
INFECTIOUS DISEASE
Hand Washing 10 Times a Day May Help Keep Flu Away
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
Grapefruit Compound Inhibits Hepatitis C Virus
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Decline of Underweight Children in U.S. Continue to Fall
Wood Fires Can Harm the Youngest Lungs
Soothing Imagery May Help Rid Some Kids of Stomach Pain
MEN'S HEALTH
Low Vitamin D Levels May Boost Men's Heart Attack Risk
Exercise May Prevent Prostate Cancer: Study Shows
Noise Hurts Men's Hearing More, Study Shows
MENTAL HEALTH
Daily dose of beet juice promotes brain health in older adults
Musicians' Brains Tuned to Emotions in Sound
The 3LS Wellness Program for Reversing Chronic Symptoms and Creating Lasting Health
PAIN
Are We Exercising Pain Away? Not So Much.
Alleviating Rheumatoid Arthritis
Tai Chi May Help Ease Fibromyalgia
PHYSICAL THERAPY
PREGNANCY
Expectant Mom's Exercise Keeps Newborn's Birth Weight Down
Obesity May Affect Fertility in Young Womene
Calcium Supplements Cut Blood Lead Levels During Pregnancy
SENIORS
Keeping Mentally Active Seems To Keep The Brain Active
Memory Loss Help from Brain Supplement Prevagen
Vitamin D May Help Keep Aging at Bay
SEXUAL HEALTH
SLEEP DISORDERS
Better Sleep, Grades Seem to Go Up
Exercising Throat Muscles May Relieve Sleep Apnea
Daylight Savings: Not a Bright Time for All
WOMEN'S HEALTH
Health Tip: Be More Comfortable During Childbirth
Pre-Pregnancy Weight Linked to Babies' Heart Problems
Simple Carbs Pose Heart Risk for Women
Add your Article

Babies Born in High Pollen Months at Wheezing Risk

THURSDAY, Feb. 26 (HealthDay News) -- Infants exposed to high levels of pollen and mold in their first few months of life are more likely to develop wheezing -- a possible early symptom of asthma, say U.S. researchers.

They studied 514 children born in 1999 and 2000 in California's Salinas Valley, and found that children born in high mold season (fall and winter) were three times more likely to develop wheezing by age 2 than children born at other times of the year. The researchers also found that total pollen concentration exposure during the first three months of life increased the risk of early wheezing.

As many as 40 percent of children who wheeze early in life may go on to develop childhood asthma, especially if they have other allergic symptoms, according to the authors of the study, published online Feb. 24 in the journal Thorax.

The findings may help clarify why babies born in the fall and winter appear to have a higher risk of developing asthma than children born in the summer.

One previous study found that babies born in the fall are at greater risk of developing childhood asthma. The authors of that study suggested that early-life exposure to respiratory viruses during the peak cold and flu season may be to blame.

"In our study, we took a different tack to understand the link between month of birth and asthma by considering ambient concentrations of fungal spores and pollen, which follow distinct seasonal patterns," study author Kim Harley, associate director of health effects research at UC Berkeley's Center for Children's Environmental Health Research, said in a university news release.

"Until our paper, there were very little data about exposure to allergens in the air, which we know can trigger symptoms for those who already have asthma. This is the first study to look at the potential role of early life exposure to multiple outdoor fungal and pollen groups in the development of asthma," Harley said.

She and her colleagues were continuing to follow the children in the study.

"We are not in a position to say conclusively why some children develop asthma, or to even suggest precautionary measures to help babies born in the fall and winter," study senior author Dr. Ira Tager, professor of epidemiology, said in the news release. "We already know that family history is a major risk factor for developing asthma, but the role environmental factors play is still being fleshed out. What this study does is provide valuable clues about airborne allergens that are worth exploring further."

More information

The American Lung Association has more about childhood asthma.



-- Robert Preidt



SOURCE: University of California, Berkeley, news releaes, Feb. 23, 2009

Last Updated: Feb. 26, 2009

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