ALLERGY, RESPIRATORY
'Safe' Ozone Levels May Not Be for Some
Molecule in Skin May Link Eczema and Asthma
Obesity May Raise Kids' Allergy Risk
ALTERNATIVE MEDICINE
Grapefruit Compound Inhibits Hepatitis C Virus
Acupuncture, Real or Fake, Eases Back Pain
Meditation, Yoga Might Switch Off Stress Genes
ANIMAL CARE
Separation Anxiety, Canine-Style
Beware of Dog Bites
Safe Toys for Dogs
BONES & JOINTS
Fractures in Older Adults Up Death Risk
A Little Drink May Be Good for Your Bones
Drinking Cuts Rheumatoid Arthritis Risk
CANCER
Red Meat No No No But Oily Fish Yes Yes Yes
Get to Know the Pap Test
Many Cancer Patients Turn to Complementary Medicine
CAREGIVING
Older Caregivers Prone to Worse Sleep Patterns
Study Casts Doubt on Influential Hospital Safety Survey
Distance No Bar to Kidney Transplants in Remote Areas
CIRCULATORY SYSTEM
Potassium-Rich Foods May Cut Stroke, Heart Disease Risk
Anemia Rates Down for U.S. Women and Children
Firefighters Have Narrower-Than-Normal Arteries, Study Finds
COSMETIC
Science May Banish Bad Hair Days
Mouse Study Finds Molecule That Tells Hair to Grow
The Acne Drug Accutane More Than Doubles Depression Risk
DENTAL, ORAL
Study Links Osteoporosis Drugs to Jaw Trouble
Obesity Boosts Gum Disease Risk
Hormones May Be to Blame for Women's Cavity Rates
DIABETES
'Standard' Glucose Test May Be Wrong One for Obese Children
24 Million Americans Had Diabetes in 2007
Whole Grains Take a Bite Out of Type 2 Diabetes Risk
DIET, NUTRITION
Fatty Acid in Olive Oil Wards Off Hunger
Eating Healthy : You Can Live Longer
Many Cancer Survivors Don't Adopt Healthy Lifestyle
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Global Warming May Bring More Respiratory Woes
Staying Slim Is Good for the Environment
Gas Stove Emissions Boost Asthma in Inner-City Kids
EYE CARE, VISION
Diabetic Hispanics Missing Out on Eye Exams
'Blind' Man Navigates Obstacle Course Without Error
Clues Found to Brain Mechanism Behind Migraines
FITNESS
Any Exercise Good After a Heart Attack
Exercise May Prevent Prostate Cancer: Study Shows
Simple Exercise Precautions To Help Keep Baby Boomers Fit
GASTROINTESTINAL PROBLEMS
Peppermint Oil, Fiber Can Fight Irritable Bowel
Gum Chewing May Speed Colon Surgery Recovery
Japanese Herbals May Ease Gastro Woes
GENERAL HEALTH
Varicose Veins May Mask Larger Problem
Swine Flu May Have Infected More Than 100,000 Americans
Swine Flu Fatality Rate a 'Little Bit' Higher Than That of Seasonal Flu
HEAD & NECK
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
The Internet Is Becoming One-Stop Shopping for Health Help
Airport Full Body Scanners Pose No Health Threat: Experts
Study Suggests Link Between Cell Phones and Brain Tumors
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Vitamin B3 May Help Repair Brain After a Stroke
Research Shows Genetic Activity of Antioxidants
Coffee Is Generally Heart-Friendly
INFECTIOUS DISEASE
Surgical Masks Could Prevent Flu, Maybe
Swine Flu Loves a Crowd
Chinese 'Devil Dung' Plant Could Be a Swine Flu Fighter
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Working Intensely Early on May Help Autistic Kids
Time to Remind Teens About Sun Protection
Traffic Seems to Make Kids' Asthma Worse
MEN'S HEALTH
The Dark Side of Vegetarianism
Varicose Veins May Mask Larger Problem
Drinking Green Tea May Slow Prostate Cancer
MENTAL HEALTH
Keeping a Healthy Holiday Balance
Meditation, Yoga Might Switch Off Stress Genes
Common Social Groups and Race, Seem to Help People Relate
PAIN
Tai Chi May Help Ease Fibromyalgia
Acupuncture, Real or Fake, Eases Back Pain
Are We Exercising Pain Away? Not So Much.
PHYSICAL THERAPY
PREGNANCY
For Baby and Mom Alike, Breast-Feeding May Be Best
Woman in America Are Delaying Motherhood, Study Says
Alternative Treatments May Boost IVF Success
SENIORS
Older People at Greater Risk of Swine Flu Death
Daily dose of beet juice promotes brain health in older adults
Tai Chi May Help Ease Fibromyalgia
SEXUAL HEALTH
SLEEP DISORDERS
Daylight Savings: Not a Bright Time for All
Better Sleep, Grades Seem to Go Up
Meditation May Help Put Primary Insomnia to Bed
WOMEN'S HEALTH
Active Young Women Need Calcium, Vitamin D
Rheumatoid Arthritis Rising Among U.S. Women
Women Smokers Lose 14.5 Years Off Life Span
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Artificial Light Linked to Prostate Cancer Risk

WEDNESDAY, Feb. 4 (HealthDay News) -- Men who live in countries with the highest levels of artificial light at night appear more likely to develop prostate cancer, according to American and Israeli researchers.

They looked at the incidence of prostate cancer among men in 164 countries and also studied data on nighttime lighting.

The incidence of prostate cancer in countries with low nighttime lighting exposure was 66.77 per 100,000, compared with 87.11 per 100,000 among men with medium exposure (30 percent greater risk), and 157 per 100,000 among men with high exposure (80 percent greater risk).

The University of Cincinnati and University of Haifa researchers said a number of theories could explain the apparent link between nighttime lighting and increased prostate cancer risk, including: suppression of melatonin production; suppression of the immune system; and disruption of the body clock due to confusion between night and day.

"This does not mean that we have to go back to the Middle Ages and turn the lights out on the country. What it means is that this link should be taken into account in planning the country's energy policies," the researchers said in a news release.

In a previous study, the same team of researchers found an association between nighttime light and the incidence of breast cancer.

More information

The U.S. National Cancer Institute explains prostate cancer prevention.



-- Robert Preidt



SOURCE: University of Haifa, news release, January 2009

Last Updated: Feb. 04, 2009

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