ALLERGY, RESPIRATORY
Air Pollution May Raise Blood Pressure
Combating Myths About Seasonal Allergies
Asthmatics Who Quit Smoking May Reverse Lung Damage
ALTERNATIVE MEDICINE
Maggots as Good as Gel in Leg Ulcer Treatments
Memory Loss Help from Brain Supplement Prevagen
Taking the Mystery Out of Hypnotherapy
ANIMAL CARE
Beware of Dog Bites
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
Safe Toys for Dogs
BONES & JOINTS
Heart Failure Raises Risk of Fractures
Most Kids With Type 1 Diabetes Lack Vitamin D
Are We Exercising Pain Away? Not So Much.
CANCER
Green Tea May Help Prevent Oral Cancer
Bitter Melon Extract May Slow, Stop Breast Cancer
Steady Weight Gain Boosts Late-Life Breast Cancer Risk
CAREGIVING
Late-Life Fatherhood May Lower Child's Intelligence
Study Links Pesticides to Birth Defects
Recession Scrambling Health Spending in U.S.
CIRCULATORY SYSTEM
Migraines in Pregnancy Boost Vascular Risks
Varicose Veins May Mask Larger Problem
Common Antioxidant Might Slow Parkinson's
COSMETIC
Get Sugared!.... Its a sweet choice for hair removal
Gum Chewing May Cut Craving for Snacks
Study Evaluates Laser Therapies for Hair Removal
DENTAL, ORAL
Scientists Find Gene for Tooth Enamel
Laser Technology Spots Cavities Before They Start
Dental Implants Need More Work Than Root Canals
DIABETES
Saliva Test Could Monitor Type 2 Diabetes
Boosting Vitamin D Can Do a Heart Good
Insulin Resistance Tied to Peripheral Artery Disease
DIET, NUTRITION
Fruits, Vegetables, Teas May Cut Smokers' Cancer Risk
Eating Vegan or Raw-Vegan at Regular Restaurants
B Vitamins Might Lower Stroke Risk
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Old-Growth Forests Dying Off in U.S. West
Smog Tougher on the Obese
U.S. Diet Needs Heart-Felt Overhaul
EYE CARE, VISION
When Gauging Age, the Eyes Have It
When Corks Fly, Watch the Eyes
Music Can Help Restore Stroke Patients' Sight
FITNESS
Women Who Run May Benefit From Extra Folic Acid
Go To Work But Skip The Car
Yoga Can Ease Lower Back Pain
GASTROINTESTINAL PROBLEMS
Japanese Herbals May Ease Gastro Woes
Gum Chewing May Speed Colon Surgery Recovery
Traditional Nonsurgical GERD Treatments Not Impressive
GENERAL HEALTH
When It Comes to Lifting, the Pros Have Your Back
Swine Flu Now Reported in All 50 States
Standard IQ Test May Underestimate People With Autism
HEAD & NECK
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
Subway Defibrillators Save Lives
'Comfort Dogs' Come to Emotional Rescue
Save Your Aging Brain, Try Surfing The Web
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
How Weight Loss Can Help the Heart
Omega-6 Fatty Acids Can Be Good for You
Implanted Defibrillators Boost Long-Term Survival
INFECTIOUS DISEASE
Viral Infection Might Trigger High Blood Pressure
Bacterial Infections May Succumb to Honey
More Medicinal Uses for Pomegranate
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Many Children Will Outgrow Headaches
6 Million U.S. Kids Lack Enough Vitamin D
Exercise in Adolescence May Cut Risk of Deadly Brain Tumor
MEN'S HEALTH
Strenuous Daily Workout May Keep Cancer at Bay
Eating Fast Until Full Triples Overweight Risk
Drinking Green Tea May Slow Prostate Cancer
MENTAL HEALTH
The 3LS Wellness Program for Reversing Chronic Symptoms and Creating Lasting Health
Teen Internet Addicts More Likely to Self-Harm: Study
Have a Goal in Life? You Might Live Longer
PAIN
Tai Chi May Help Ease Fibromyalgia
Alleviating Rheumatoid Arthritis
Are We Exercising Pain Away? Not So Much.
PHYSICAL THERAPY
PREGNANCY
Obesity May Affect Fertility in Young Womene
Yoga's Benefits Outweigh Risks for Pregnant Women
Pregnant Women Exposed To Certain Pollutants Could Lower Childs IQ
SENIORS
Keeping Mentally Active Seems To Keep The Brain Active
For Older Walkers, Faster Is Better
Vitamin D May Help Keep Aging at Bay
SEXUAL HEALTH
SLEEP DISORDERS
Lose Weight, Sleep Apnea May Improve
Sleeping Could Help Women Lose The Baby Fat
Meditation May Help Put Primary Insomnia to Bed
WOMEN'S HEALTH
Occaisonal Dieting May Cut Breast Cancer, Study Says
Women Smokers Lose 14.5 Years Off Life Span
Natural Oils Help Lower Body Fat For Some
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Iced Teas Pose High Risk of Kidney Stones

FRIDAY, July 25 (HealthDay News) -- Men over 40 may want to avoid iced tea and start hitting the lemonade if they wish to lower their risk of kidney stones, according to experts.

Kidney stones, crystals that develop in the kidneys or the tubes that carry urine from the kidney to the bladder, affect 10 percent of the U.S. population, and men run a four times greater risk than women of developing them. The chance of forming kidney stones rises steeply after the age of 40.

Oxalate, a key chemical in the formation of kidney stones, comes in high concentrations in iced tea.

"For many people, iced tea is potentially one of the worst things they can drink," John Milner, an instructor in the department of urology at Loyola University Chicago Stritch School of Medicine, said in a news release. "For people who have a tendency to form kidney stones, it's definitely one of the worst things you can drink."

The failure to stay hydrated is a common cause of kidney stones. Summertime heat and humidity, which causes excessively sweating and dehydration, combined with an marked increase in iced tea consumption in the United States, raises the risk of kidney stones during this time of year.

The Tea Association of the U.S.A. reports that Americans consume almost 1.91 billon gallons of iced teas a year, a dramatic rise given the belief that the beverage is healthier than other alternatives such as soda and beer.

Milner said drinking water is the best way to stay properly hydrated. If one is prone to developing kidney stones, though, flavoring water heavily with lemon or drinking lemonade may help.

"Lemons are very high in citrates, which inhibit the growth of kidney stones," Milner said. "Lemonade, not the powdered variety that uses artificial flavoring, actually slows the development of kidney stones for those who are prone to the development of kidney stones."

Other foods containing high concentrations of oxalates that people prone to kidney stones should avoid include spinach, chocolate, rhubarb and nuts. Going light on salt consumption, reducing the amount of meat consumed, drinking several glasses a water a day, and eating foods high in calcium, which counteract any oxalates the body absorbs, also helps.

More information

The National Kidney and Urologic Diseases Information Clearinghouse has more about kidney stones.



-- Kevin McKeever



SOURCE: Loyola University Health System, news release, July 22, 2008

Last Updated: July 25, 2008

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