ALLERGY, RESPIRATORY
Using Music and Sports to Improve Kids' Asthma
Asthmatics Who Quit Smoking May Reverse Lung Damage
Air Quality Better in Northeast, Midwest
ALTERNATIVE MEDICINE
Spot light on Dani Antman New Lionheart teacher
Naprapathy: A Hands-On Approach to Pain Management
Ginkgo No Shield Against Alzheimer's
ANIMAL CARE
Beware of Dog Bites
'Comfort Dogs' Come to Emotional Rescue
Safe Toys for Dogs
BONES & JOINTS
'Snowbirds' Beware the Climate Changes
Soccer's a Winner for Building Bone Health in Girls
Vitamin C Protects Some Elderly Men From Bone Loss
CANCER
Ginger Can Ease Nausea From Chemotherapy Treatments
Vitamin D May Lower Colon Cancer Risk
Vitamin D May Improve Melanoma Survival
CAREGIVING
Timing May Matter in Organ Donation Decisions
Critically Ill Patients Lack Vitamin D
Depression, PTSD Common Among Lung Transplant Patient Caregivers
CIRCULATORY SYSTEM
Smog Tougher on the Obese
A Brisk Pace May Keep Stroke at Bay
Bad Marriages Harder on Women's Health
COSMETIC
Mouse Study Finds Molecule That Tells Hair to Grow
Science May Banish Bad Hair Days
New Genetic Links to Baldness Discovered
DENTAL, ORAL
Study Links Osteoporosis Drugs to Jaw Trouble
Toothbrushing May Stave Off Heart Woes
An Oral Approach to Heart Disease
DIABETES
Vitamin K Slows Insulin Resistance in Older Men
Red-Grape Compound May Improve Diabetes
Brown Rice Bests White for Diabetes Prevention
DIET, NUTRITION
Six Healthy-Sounding Foods That Really Aren't
'Organic' May Not Mean Healthier
5 Reasons why you could gain weight while dieting
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Air Quality Better in Northeast, Midwest
Traffic Seems to Make Kids' Asthma Worse
Air Pollution Exposure May Slow Fetal Growth
EYE CARE, VISION
Brain Adapts to Age-Related Eye Disease
When Gauging Age, the Eyes Have It
Cases of Age-Related Farsightedness to Soar
FITNESS
Fitness Fades Fast After 45
Walk Long, Slow and Often to Help the Heart
As Temperature Plummets, It's Still Safe to Exercise
GASTROINTESTINAL PROBLEMS
Gum Chewing May Speed Colon Surgery Recovery
HRT Use Raises Risk of Stomach Trouble
Intestinal Bacteria Trigger Immune Response
GENERAL HEALTH
Man Dies of Brain Inflammation Caused by Deer Tick Virus
Eating Healthy : You Can Live Longer
When It Comes to Lifting, the Pros Have Your Back
HEAD & NECK
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
'Comfort Dogs' Come to Emotional Rescue
E-Mailing Your Way to Healthier Habits
Imaging Sheds Light on How Acupuncture Works
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Ingredient in Dark Chocolate Could Guard Against Stroke
Low Vitamin D Levels Linked to Heart Disease
Toothbrushing May Stave Off Heart Woes
INFECTIOUS DISEASE
Swine Flu Now Reported in All 50 States
Chinese 'Devil Dung' Plant Could Be a Swine Flu Fighter
More Medicinal Uses for Pomegranate
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Wood Fires Can Harm the Youngest Lungs
Bullying Seems to Affect Kids Years Later
Childhood Dairy Intake Boosts Bone Health Later On
MEN'S HEALTH
Physical Activity May Prolong Survival After Colon Cancer
Soy Linked to Low Sperm Count
Eating Fast Until Full Triples Overweight Risk
MENTAL HEALTH
Worries About Weight Are Tied to Teen Suicide Tries
Shop 'Til You Drop: You May Feel Better
Bullying Seems to Affect Kids Years Later
PAIN
'Cell Phone Elbow' -- A New Ill for the Wired Age
Tai Chi May Help Ease Fibromyalgia
Acupuncture, Real or Fake, Eases Back Pain
PHYSICAL THERAPY
PREGNANCY
Sugary Colas Tied to Gestational Diabetes
Placebo Acupuncture Tied to Higher IVF Pregnancies
Acupuncture May Relieve Acid Indigestation In Pregnancy
SENIORS
Money May Matter, Health-Wise, in Old Age
Daily dose of beet juice promotes brain health in older adults
Exercise Helps Reduce Falls in Young and Old
SEXUAL HEALTH
SLEEP DISORDERS
Better Sleep, Grades Seem to Go Up
Sleeping Could Help Women Lose The Baby Fat
Moderate Aerobics May Ease Insomnia Symptoms
WOMEN'S HEALTH
Soy May Not Lead to Denser Breasts
Acupuncture May Relieve Acid Indigestation In Pregnancy
Iodine in Prenatal Vitamins Varies Widely
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Air Pollution May Raise Blood Pressure

(HealthDay News) -- Breathing polluted air for even two hours can boost blood pressure, potentially raising the risk of cardiovascular disease in those exposed to smog, a new study suggests.

Although the increase may not mean much for healthy people, "this small increase may actually be able to a trigger a heart attack or stroke," study author Dr. Robert D. Brook, an assistant professor of medicine at the University of Michigan, said in a university news release.

An estimated nearly one in three Americans suffer from high blood pressure, meaning the heart is straining to push blood through the circulatory system.

In the study, which appears in a recent issue of Hypertension, researchers tested 83 people as they breathed levels of air pollution similar to those in an urban city near a roadway.

"We looked at their blood vessels and then their responses before and after breathing high levels of air pollution," study co-author Robert Bard, a University of Michigan clinic research coordinator, said in a news release.

The air pollution caused diastolic pressure -- the lower number in a blood pressure reading -- to rise within two hours. Blood vessels were impaired for as long as 24 hours.

Tests showed that microscopic particles in the air, rather than ozone gases, caused the rise in blood pressure and impaired blood vessel function.

"If air pollution levels are forecasted to be high, those with heart disease, diabetes or lung disease should avoid unnecessary outdoor activity," Brook said.

SOURCES: University of Michigan, news release, September 2009 Published on: September 14, 2009