ALLERGY, RESPIRATORY
Herbal Remedy Could Halt Peanut Allergy
Asthmatics Who Quit Smoking May Reverse Lung Damage
Overweight Moms More Likely to Have Asthmatic Kids
ALTERNATIVE MEDICINE
Traditional Chinese Therapy May Help Ease Eczema
Uncover Why Turmeric Helps You Heal
Insight on Herbals Eludes Doctors, Patients Alike
ANIMAL CARE
Animals Respond to Acupuncture's Healing Touch
'Comfort Dogs' Come to Emotional Rescue
Safe Toys for Dogs
BONES & JOINTS
Study Shows Exercise Shields Against Osteoporosis
Weight Loss Might Not Curb Knee Arthritis
Vitamin C Protects Some Elderly Men From Bone Loss
CANCER
Supplements Might Reduce Breast Cancer Risk
Breast Self-Exam Rates Go Up With Counseling
No Verdict Yet on Grape Seed Extract vs. Breast Cancer
CAREGIVING
Bariatric Surgery Centers Don't Deliver Better Outcomes
Children's Bath Products Contain Contaminants
Many Hospital Patients Can't ID Their Doctors
CIRCULATORY SYSTEM
Night Shift Work Hard on the Heart
Smog Tougher on the Obese
Bad Marriages Harder on Women's Health
COSMETIC
Health Tip: After Liposuction
Study Evaluates Laser Therapies for Hair Removal
Contact Lenses Boost Kids' Self-Image
DENTAL, ORAL
Gum Disease Might Boost Cancer Risk
Acupuncture May Ease Anxiety Over Dental Work
Periodontal Disease Impacts Whole Health
DIABETES
Exercise Protects Black Women From Type 2 Diabetes
Fructose-Sweetened Drinks Up Metabolic Syndrome Risk
Vitamin K Slows Insulin Resistance in Older Men
DIET, NUTRITION
Olive Oil May Be Key to Mediterranean Diet's Benefits
Drinking Your Way to Health? Perhaps Not
Research Confirms How Valuable A Healthy Lifestyle Can Be
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Staying Slim Is Good for the Environment
Childhood Food Allergies on the Rise
Plastics Chemical Tied to Aggression in Young Girls
EYE CARE, VISION
'Blind' Man Navigates Obstacle Course Without Error
Autistic Children Make Limited Eye Contact
Impotence Drugs Don't Harm Vision: Study
FITNESS
Tai Chi: An Ideal Exercise for Many People with Diabetes
Study Shows Exercise Shields Against Osteoporosis
The 3LS Wellness Program for Reversing Chronic Symptoms and Creating Lasting Health
GASTROINTESTINAL PROBLEMS
Gum Chewing May Speed Colon Surgery Recovery
Intestinal Bacteria Trigger Immune Response
Soothing Imagery May Help Rid Some Kids of Stomach Pain
GENERAL HEALTH
Cocaine Spurs Long-Term Change in Brain Chemistry
Keep Safety in Mind While Your Kids Are Cooling Off in the Water
Eating Nuts May Help Cholesterol Levels
HEAD & NECK
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
The Internet Is Becoming One-Stop Shopping for Health Help
Subway Defibrillators Save Lives
'Comfort Dogs' Come to Emotional Rescue
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Small Cuts in Salt Intake Spur Big Drops in Heart Trouble
Arteries Age Twice as Fast in Smokers
Too Much Red Meat May Shorten Life Span
INFECTIOUS DISEASE
Hand Washing 10 Times a Day May Help Keep Flu Away
Swine Flu Closes Three Schools in NYC
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
School Phys. Ed. Injuries Up 150 Percent
Keep Safety in Mind While Your Kids Are Cooling Off in the Water
Exercise During Pregnancy Keeps Newborn Size Normal
MEN'S HEALTH
Lots of Sex May Prevent Erectile Dysfunction
Soy Linked to Low Sperm Count
Exercise May Prevent Prostate Cancer: Study Shows
MENTAL HEALTH
Keeping Mentally Active Seems To Keep The Brain Active
Common Social Groups and Race, Seem to Help People Relate
Meditation May Boost College Students' Learning
PAIN
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
Are We Exercising Pain Away? Not So Much.
PHYSICAL THERAPY
PREGNANCY
Music of Mozart Soothes the Preemie Baby
Calcium Supplements Cut Blood Lead Levels During Pregnancy
Alternative Treatments May Boost IVF Success
SENIORS
Seniors Who Volunteer May Live Longer
Memory Loss Help from Brain Supplement Prevagen
Martial Arts Training May Save Seniors' Hips
SEXUAL HEALTH
SLEEP DISORDERS
Lose Weight, Sleep Apnea May Improve
Exercising Throat Muscles May Relieve Sleep Apnea
Sleeping Could Help Women Lose The Baby Fat
WOMEN'S HEALTH
Women Who Run May Benefit From Extra Folic Acid
Simple Carbs Pose Heart Risk for Women
Lifting Weights Can Ease Arm Swelling in Breast Cancer Survivors
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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