ALLERGY, RESPIRATORY
Keep Asthma, Allergies at Bay for the Holidays
Childhood Food Allergies on the Rise
Traffic, Dust Linked to Asthma in Kids
ALTERNATIVE MEDICINE
Spot light on Dani Antman New Lionheart teacher
U.S. Spends Billions On Alternative Medicine
Pharoah's Wine Jar Yields Medicinal Secrets
ANIMAL CARE
Beware of Dog Bites
Animals Respond to Acupuncture's Healing Touch
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
BONES & JOINTS
Yoga Can Ease Lower Back Pain
Rheumatoid Arthritis a Threat to the Heart
New Clues to How Fish Oils Help Arthritis Patients
CANCER
Smoking Ups Risk of Second Breast Cancer
Multiple Screening Strategy Boosts Cervical Cancer Detection
Broccoli May Help Battle Breast Cancer
CAREGIVING
Falls Are Top Cause of Injury, Death Among Elderly
ER Less Likely to Diagnose Stroke in Younger Folks
Critically Ill Patients Lack Vitamin D
CIRCULATORY SYSTEM
Laughter Can Boost Heart Health
Bad Marriages Harder on Women's Health
Night Shift Work Hard on the Heart
COSMETIC
Gum Chewing May Cut Craving for Snacks
Mouse Study Finds Molecule That Tells Hair to Grow
Get Sugared!.... Its a sweet choice for hair removal
DENTAL, ORAL
Periodontal Disease Impacts Whole Health
Good Oral Hygiene May Protect Against Heart Infections
Gum Disease May Reactivate AIDS Virus
DIABETES
Red-Grape Compound May Improve Diabetes
Whole Grains Take a Bite Out of Type 2 Diabetes Risk
Poor Blood Sugar Control After Heart Surgery Impacts Outcomes
DIET, NUTRITION
Antioxidants Abound in Cereals, Popcorn, Whole-Grain Snacks
Pesticides and How to Affordably Eat Organic or Reduce Pesticide Consumption
Fasting on Alternate Days May Make Dieting Easier
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Hypertension May Hit Black Males Earlier
Plastics Chemical Tied to Aggression in Young Girls
Skin Woes Take Toll on U.S. Combat Troops
EYE CARE, VISION
Cases of Age-Related Farsightedness to Soar
Kids' Eye Injuries From Golf Clubs Rare But Severe
Omega-3 Foods May Lower Eye Disease Risk
FITNESS
Almost Two-Thirds of Americans Meet Exercise Guidelines
Exercise May Prevent Prostate Cancer: Study Shows
Moderate Aerobic Exercise Lowers Diabetics' Liver Fat
GASTROINTESTINAL PROBLEMS
Intestinal Bacteria Trigger Immune Response
Gum Chewing May Speed Colon Surgery Recovery
Japanese Herbals May Ease Gastro Woes
GENERAL HEALTH
Study Supports Swine Flu's Pandemic Potential
Can You Talk Your Way to Happy?
Standard IQ Test May Underestimate People With Autism
HEAD & NECK
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
Combating Myths About Seasonal Allergies
Subway Defibrillators Save Lives
E-Mailing Your Way to Healthier Habits
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Women Who Run May Benefit From Extra Folic Acid
Brown Rice Tied to Better Heart Health in Study
Lack of Vitamin D Linked to High Blood Pressure
INFECTIOUS DISEASE
Swine Flu Is Now a Pandemic Says W.H.O.
Swine Flu Now Reported in All 50 States
Surgical Masks Could Prevent Flu, Maybe
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Music May Temper Pain in Preemies
Help Your Kids Stay Active
Quick Orthopedic Repair Can Save Young Shoulders
MEN'S HEALTH
Physical Activity May Prolong Survival After Colon Cancer
Could Chinese Herb Be a Natural Viagra?
Vigorous Exercise Cuts Stroke Risk for Men, Not Women
MENTAL HEALTH
Estrogen May Help Men's Hearts
Keeping a Healthy Holiday Balance
Using the Mind to Heal the Heart
PAIN
'Cell Phone Elbow' -- A New Ill for the Wired Age
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
PHYSICAL THERAPY
PREGNANCY
Woman in America Are Delaying Motherhood, Study Says
Acupuncture May Ease Depression During Pregnancy
Prenatal Stress May Boost Baby's Asthma Risk
SENIORS
A Little Alcohol May Stave Off Alzheimer's
Friends, Not Grandkids, Key to Happy Retirement
Exercise Helps Reduce Falls in Young and Old
SEXUAL HEALTH
SLEEP DISORDERS
6 to 8 Hours of Shut-Eye Is Optimal for Health
Better Sleep, Grades Seem to Go Up
Exercising Throat Muscles May Relieve Sleep Apnea
WOMEN'S HEALTH
Sugary Colas Tied to Gestational Diabetes
Sleeping Could Help Women Lose The Baby Fat
Bitter Melon Extract May Slow, Stop Breast Cancer
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Main Ingredients in Household Dust Come From Outdoors

(HealthDay News) -- Most of the dust that coats your furniture and floors comes from outdoors and can pose a health threat, a new study suggests.

The researchers developed a computer model that can track the distribution of outdoor soil and airborne particles into homes and found that more than 60 percent of household dust originates from tracked-in soil and airborne particles from the outdoors. The remainder is from dead skin shed by residents, fibers from carpets and upholstered furniture.

This outdoor-based dust can contain lead, arsenic and other potentially harmful substances, said the Arizona researchers. For example, they estimated that 60 percent of arsenic in floor dust may come from arsenic in the surrounding air, with the remainder coming from tracked-in soil.

The substances in household dust that originates outdoors may be a special concern for homes with children, who put dust-contaminated toys and other objects into their mouths, said David Layton and Paloma Beamer of the University of Arizona in Tucson, who added that their computer model may prove useful in evaluating ways to reduce contaminants in dust and associated human exposure.

The study was released online in advance of publication in the Nov. 1 print issue of the journal Environmental Science & Technology.

SOURCES: Environmental Science & Technology, news release, November 2009