ALLERGY, RESPIRATORY
Molecule in Skin May Link Eczema and Asthma
Folic Acid Might Offer Allergy Relief
Asthmatics Who Quit Smoking May Reverse Lung Damage
ALTERNATIVE MEDICINE
Memory Loss Help from Brain Supplement Prevagen
Relaxation Tapes or Mozart Lower Blood Pressure
Massage Therapy Helps Those With Advanced Cancer
ANIMAL CARE
Animals Respond to Acupuncture's Healing Touch
Beware of Dog Bites
Safe Toys for Dogs
BONES & JOINTS
Extra Pounds in Mid-Life Affect Later Mobility
Resistance Training Boosts Mobility in Knee Arthritis Patients
Most Women With Osteoporosis Unaware of Raised Fracture Risk
CANCER
Yoga Eases Sleep Problems Among Cancer Survivors
Smoking Exposure Now Linked to Colon, Breast Cancers
To Quit Smoking, Try Logging On
CAREGIVING
Many Alzheimer's Caregivers Admit to Abusive Behavior
New Guidelines for Treating Heart Failure
Depression, PTSD Common Among Lung Transplant Patient Caregivers
CIRCULATORY SYSTEM
Anemia Rates Down for U.S. Women and Children
Obesity Linked to Heart Failure Risk
Vitamins Do Older Women Little Good
COSMETIC
The Acne Drug Accutane More Than Doubles Depression Risk
Wrinkle Fillers Need Better Label Warnings: FDA Panel
Contact Lenses Boost Kids' Self-Image
DENTAL, ORAL
Gum Disease Treatment Doesn't Cut Preterm Birth Risk
Gum Care Helps Control Type 2 Diabetes and Its Complications
Acid Drinks Blamed for Increase in Tooth Erosion
DIABETES
Coffee, Tea Might Stave Off Diabetes
Insulin Resistance Tied to Peripheral Artery Disease
Out-of-Control Blood Sugar May Affect Memory
DIET, NUTRITION
Is Your Refrigerator Getting Enough Attention For Your Raw Food Success?
Meat Additives May Be Dangerous for Kidney Patients
The Best Diet? That Depends on You
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Green Areas Lower Health Inequities Between Rich, Poor
Home Renovations by Affluent Families Can Unleash Lead Threat
Hairspray Exposure Ups Risk for Birth Defect in Sons
EYE CARE, VISION
Impotence Drugs Don't Harm Vision: Study
Decorative Halloween Eye Lenses May Pose Serious Risks
Protein Might One Day Prevent Blindness
FITNESS
Will the Wii Keep You Fit?
Simple Steps Get Walkers Moving
Yoga Can Ease Lower Back Pain
GASTROINTESTINAL PROBLEMS
New Yogurt May Ease Stomach Ulcers
Traditional Nonsurgical GERD Treatments Not Impressive
Japanese Herbals May Ease Gastro Woes
GENERAL HEALTH
Soluble Fiber, But Not Bran, Soothes Irritable Bowel
When Clocks Change, Body May Need Time to Adjust
A Honey of a Sinusitis Treatment
HEAD & NECK
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
'Cell Phone Elbow' -- A New Ill for the Wired Age
Airport Full Body Scanners Pose No Health Threat: Experts
HEARING
Summer Sounds Can Lead to Hearing Loss
Noise Hurts Men's Hearing More, Study Shows
HEART & CARDIOVASCULAR
Fatty Fish May Cut Heart Failure Risk in Men
Brown Rice Tied to Better Heart Health in Study
Western Diet Linked To Heart Disease, Metabolic Syndrome
INFECTIOUS DISEASE
Bacterial Infections May Succumb to Honey
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
Swine Flu Closes Three Schools in NYC
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Mom's Extra Pregnancy Pounds May Raise Child's Heart Risks
Guard Kids' Eyes Against Long-Term Sun Damage
Working Intensely Early on May Help Autistic Kids
MEN'S HEALTH
Drinking Green Tea May Slow Prostate Cancer
Low Vitamin D Levels May Boost Men's Heart Attack Risk
Lots of Sex May Prevent Erectile Dysfunction
MENTAL HEALTH
Drink Away Dementia?
Reminiscing Helps Build Emotional Strength
Bullying Seems to Affect Kids Years Later
PAIN
Are We Exercising Pain Away? Not So Much.
Alleviating Rheumatoid Arthritis
Acupuncture, Real or Fake, Eases Back Pain
PHYSICAL THERAPY
PREGNANCY
Breast-Feeding Benefits Moms and Babies
Sleeping Could Help Women Lose The Baby Fat
Music of Mozart Soothes the Preemie Baby
SENIORS
As You Age, Better Health Means Better Sex
Could Your Cell Phone Help Shield You From Alzheimer's?
Older Adults May Have Some Immunity to Swine Flu
SEXUAL HEALTH
SLEEP DISORDERS
Moderate Aerobics May Ease Insomnia Symptoms
Daylight Savings: Not a Bright Time for All
6 to 8 Hours of Shut-Eye Is Optimal for Health
WOMEN'S HEALTH
Natural Therapies for Menopause
Health Tip: Be More Comfortable During Childbirth
Exercise, Weight Control May Keep Fibromyalgia at Bay
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Exercise in Adolescence May Cut Risk of Deadly Brain Tumor

(HealthDay News) -- Exercising during adolescence may help guard against a deadly form of brain tumor in adulthood, new research suggests.

The study also found that avoiding obesity during the teen years was associated with a lower risk of developing the cancerous brain tumors called gliomas, while being tall increased the chances of such malignancies.

The study appears in the Nov. 1 issue of Cancer Research.

Gliomas are the most common type of brain and central nervous system cancers, accounting for 80 percent of cases, according to background information in the study. Gliomas cause 13,000 deaths in the United States each year.

Though little is known about why people develop the tumors or who is at risk, previous research has hinted that "early life exposures" may increase the risk of developing the cancer in adulthood, said study author Steven C. Moore, a research fellow in the Nutritional Epidemiology Branch of the U.S. National Cancer Institute. Studies have shown that people who are left-handed, for example, are at higher risk of the disease.

In the current research, Moore and his colleagues examined data on nearly 500,000 men and women aged 50 to 71 participating in the NIH-AARP Diet and Health Study, which included questionnaires on height and weight at various points during their lives.

Those who'd reported doing substantial amounts of light, moderate and vigorous exercise between the ages 15 and 18 were 36 percent less likely to develop glioma than those who were sedentary. Activities included walking, aerobics, biking, swimming, running, heavy housework or gardening.

The researchers also found that those who were obese during their teen years had a three to four times greater risk of developing glioma than those of a normal weight. Because only 11 people who developed glioma were also obese as teenagers, researchers said the finding needed to be replicated.

"The BMI [body mass index] finding is very interesting but it's hard to know what to make of it," Moore said. "It's also hard to say if it's a causal relationship or not. It could be that obesity increases the risk of brain cancer, or if could be that some underlying condition increases both the risk of obesity and brain cancer."

Neither weight nor exercise affected glioma risk beyond the teen years.

Tall people were also at increased risk of glioma. Each 10 centimeter (about 3.9 inches) increase in height meant a nearly 20 percent increase in risk of developing glioma.

The researchers said increases in glioma risk could be related to "energy balance" during a critical period of brain development. People who are tall have higher levels of the growth factor IGF-1 during childhood. Growth factors promote the proliferation of cells.

"Anything that increases the rate of proliferation of cells could potentially be a cancer risk factor," Moore said.

Dr. Paul Graham Fisher, a professor of neurology at Stanford University, said the study was "well done," but questioned why exercise and weight did not affect glioma risk beyond the teen years.

"You start scratching your head and asking, 'Why wouldn't it be true in the 20s and 30s or later?'" Fisher said. "It's possible there is some critical window in which energy balance can impact glioma genesis."

And though researchers relied on the recollections of older adults about their weight and physical activity from many decades ago, there's no reason to suspect people who were later diagnosed with glioma had any better or worse memories, or reported their height and weight with any particular bias than those who didn't develop the brain tumors.

With the risk of developing glioma so low among the general population, the findings aren't so much a prescription for teens to exercise as more information for researchers searching for the biological underpinnings of glioma in the hopes developing new treatments.

Yet it's not a bad idea to encourage teens to stay active, too, Moore said.

"At this point in time, these data are more relevant to the biology of glioma, but they provide some preliminary evidence that physical activity could be important for glioma, too," Moore said.

SOURCES: Steven C. Moore, Ph.D., research fellow, National Cancer Institute, Rockville, Md.; Paul Graham Fisher, M.D., professor, neurology, Stanford University, Palo Alto, Calif.; Nov. 1, 2009, Cancer Research