ALLERGY, RESPIRATORY
Climate Change Could Sting Allergy, Asthma Sufferers
Herbal Remedy Could Halt Peanut Allergy
Overweight Moms More Likely to Have Asthmatic Kids
ALTERNATIVE MEDICINE
Yoga May Bring Calm to Breast Cancer Treatment
Naprapathy: A Hands-On Approach to Pain Management
Fish Oil's Benefits Remain Elusive
ANIMAL CARE
'Comfort Dogs' Come to Emotional Rescue
Animals Respond to Acupuncture's Healing Touch
Beware of Dog Bites
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Rheumatoid Arthritis Hits Women Harder
Sea Worm Inspires Novel Bone Glue
Vitamin K Doesn't Slow Bone Loss
CANCER
Exercise Cuts Lung Cancer Risk in Ex-Smokers by 45%
Asthmatics Who Quit Smoking May Reverse Lung Damage
Gene Screen May Predict Colon Cancer's Return
CAREGIVING
Preventing Shaken Baby Syndrome
Are Hospital Mobile Phones Dialing Up Superbugs?
Hospital Volume Imperfect Gauge of Cancer Surgery Outcomes
CIRCULATORY SYSTEM
Drink a Little Wine, Live a Little Longer
Bad Marriages Harder on Women's Health
Smog Tougher on the Obese
COSMETIC
Contact Lenses Boost Kids' Self-Image
With Psoriasis, the Internet May Offer Hope
New Genetic Links to Baldness Discovered
DENTAL, ORAL
Gum Disease Treatment Doesn't Cut Preterm Birth Risk
Obesity Boosts Gum Disease Risk
Dental Implants Need More Work Than Root Canals
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24 Million Americans Had Diabetes in 2007
Coffee, Tea Might Stave Off Diabetes
Patients' Photos Help Boost Radiologists' Accuracy
DIET, NUTRITION
Brown Rice Tied to Better Heart Health in Study
Meat Additives May Be Dangerous for Kidney Patients
Fish Oil's Benefits Remain Elusive
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
EPA Alerts Seniors to Carbon Monoxide Dangers
Genetics, Environment Shape Sexual Behavior
Vest Monitors 'Individual' Air Pollution
EYE CARE, VISION
Don't Lose Sight of Halloween Safety
Protein Might One Day Prevent Blindness
Brain Pressure More Likely to Cause Vision Loss in Men
FITNESS
Eating Well And Keeping Active As You Grow Old Will Help You Stay Sharp
Barefoot Best for Running?
Be Healthy, Spend Less
GASTROINTESTINAL PROBLEMS
New Yogurt May Ease Stomach Ulcers
Japanese Herbals May Ease Gastro Woes
Intestinal Bacteria Trigger Immune Response
GENERAL HEALTH
Smog Tougher on the Obese
Most Fast-Food French Fries Cooked in Unhealthiest Oil
Quit Smoking the Holistic Way
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Many Children Will Outgrow Headaches
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
Subway Defibrillators Save Lives
Imaging Sheds Light on How Acupuncture Works
Using Light Therapy to Silence Harmful Brain Activity
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Western Diet Linked To Heart Disease, Metabolic Syndrome
Ginkgo Won't Prevent Heart Attack, Stroke in Elderly
Drinking Your Way to Health? Perhaps Not
INFECTIOUS DISEASE
Surgical Masks Could Prevent Flu, Maybe
Hand Washing 10 Times a Day May Help Keep Flu Away
Bacterial Infections May Succumb to Honey
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Obese Children More Likely to Suffer Lower Body Injuries
Time to Remind Teens About Sun Protection
Winter's Bitter Cold Poses Health Dangers
MEN'S HEALTH
Low Iron Levels Cut Cancer Risk in Men With PAD
Noise Hurts Men's Hearing More, Study Shows
Strenuous Daily Workout May Keep Cancer at Bay
MENTAL HEALTH
Massage Fosters Healing in Bereaved Relatives
Using the Mind to Heal the Heart
The Unmedicated Mind
PAIN
'Cell Phone Elbow' -- A New Ill for the Wired Age
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
PHYSICAL THERAPY
PREGNANCY
For Baby and Mom Alike, Breast-Feeding May Be Best
Before Conceiving, Take Folic Acid for One Full Year
Prenatal Stress May Boost Baby's Asthma Risk
SENIORS
Could Your Cell Phone Help Shield You From Alzheimer's?
High-Impact Activity May Be Good for Old Bones
Seniors Who Volunteer May Live Longer
SEXUAL HEALTH
SLEEP DISORDERS
6 to 8 Hours of Shut-Eye Is Optimal for Health
Pay Attention to Signs That Say You're Too Fatigued to Drive
Lose Weight, Sleep Apnea May Improve
WOMEN'S HEALTH
Supplements Might Reduce Breast Cancer Risk
Sleeping Could Help Women Lose The Baby Fat
Exercise Boosts Bone Density in Breast-Feeding Moms
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Study Suggests Link Between Cell Phones and Brain Tumors

(HealthDay News) -- The latest study focusing on a possible cell phone-brain tumor connection finds a weak potential link between the two.

A review of existing research on the topic, published online Oct. 13 in the Journal of Clinical Oncology, discerned no overall link. But when the spotlight was turned on only the more methodologically rigorous studies, a potentially harmful association was found.

Combined with similarly murky conclusions from earlier research, this leaves the world's four billion cell phone users with no clear indication of what risk, if any, they are taking when they converse on the go.

"We cannot make any definitive conclusions about this," said one expert, Dr. Deepa Subramaniam, director of the Brain Tumor Center at Georgetown Lombardi Comprehensive Cancer Center in Washington, D.C. "But this study, in addition to all the previous studies, continues to leave lingering doubt as to the potential for increased risk. So, one more time, after all these years, we don't have a clear-cut answer."

"What makes me worry," she stated, "is that the higher quality studies [seen here] did indeed show an association."

Joel Moskowitz, the study's senior author, said that "clearly there is risk." He's director of the Center for Family and Community Health at the University of California, Berkeley, School of Public Health.

"I would not allow children to use a cell phone, or I at least would require them to use a separate headset," Moskowitz said. "It seems fairly derelict of us as a society or as a planet to just disseminate this technology to the extent that we have without doing a whole lot more research of the potential harms and how to protect against those harms. Clearly, we need to learn a whole lot more about this technology."

Some in the technology industry disagree.

"The peer-reviewed scientific evidence has overwhelmingly indicated that wireless devices do not pose a public health risk," John Walls, vice president of public affairs for CTIA-The Wireless Association, said in a prepared statement.

"In addition, there is no known mechanism for microwave energy within the limits established by the [U.S. Federal Communications Commission] to cause any adverse health effects," he said. "That is why the leading global heath organizations such as the American Cancer Society, [U.S.] National Cancer Institute, World Health Organization and the U.S. Food and Drug Administration all have concurred that wireless devices are not a public health risk."

For the new study, Moskowitz and his fellow researchers in South Korea searched medical bases for the keywords "mobile phones," "cellular phones," "cordless phones" and "tumors" or "cancer." They included 23 case-control studies, involving 37,916 total participants, in their final analysis.

When the studies were pooled, no risk was seen between mobile phone use and brain tumors, either benign or malignant. But a subgroup of studies that employed more rigorous methodology -- most conducted by the same research team in Sweden -- reported a harmful effect, whereas a set of less rigorous studies -- most funded by an industry consortium -- found a protective effect.

Specifically, the more robust studies found that using a mobile phone for a decade or longer resulted in an 18 percent increased risk for developing a brain tumor.

Some studies also showed that brain tumors were more likely to appear on the side of the brain where the cell phone was used.

According to the American Cancer Society, nearly 21,000 malignant brain or spinal cord tumors are diagnosed in adults in the U.S. each year, while 3,800 such tumors are diagnosed in children.

Moskowitz also believes that there's potential for harm to other areas of the body -- the genitals, for example -- when the phone is carried in a pocket.

With so many people worldwide using cell phones, even a small risk could translate into many illnesses and deaths, he said.

"We need to do a whole lot more research because the stakes are really high and there seems to be suggestive evidence that you better be careful about this, especially in children, who have developing tissue and smaller brain and skull sizes," Moskowitz warned.

Subramaniam seemed to agree.

"I do encourage people to use the speaker phone or a hands-free device if they can, and I definitely do not encourage children to use cell phones because then there's a much longer lifetime risk of exposure," she said.

"In my opinion," she said, "the question remains unsettled -- and unsettled always carries with it likelihood that we might find an association."

A report last year from the National Research Council, the main operating agency of the National Academy of Sciences and the National Academy of Engineering, and compiled at the request of the U.S. Food and Drug Administration, called for more research into the risks posed by long-term cell phone use, rather than the more commonly studied short-term risks. It urged that such research focus on the health of children, pregnant women and fetuses as well as workers subject to high occupational exposure.

SOURCES: Deepa Subramaniam, M.D., director, Brain Tumor Center, Georgetown Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, D.C.; Joel Moskowitz, Ph.D., director, Center for Family and Community Health, School of Public Health, University of California, Berkeley; prepared statement, John Walls, vice president, public affairs, CTIA-The Wireless Association, Washington, D.C.; Oct. 13, 2009, Journal of Clinical Oncology, online Published on: October 13, 2009