ALLERGY, RESPIRATORY
Keep Asthma, Allergies at Bay for the Holidays
Air Pollution May Raise Blood Pressure
Air Quality Better in Northeast, Midwest
ALTERNATIVE MEDICINE
Holistic Treatment for Candida Infection
Indigo Ointment Benefits Psoriasis Patients
Many Cancer Patients Turn to Complementary Medicine
ANIMAL CARE
Rest Easy. When It Comes to Swine Flu, Your Pet Is Safe
Beware of Dog Bites
Safe Toys for Dogs
BONES & JOINTS
Almost Half of Adults Will Develop Knee Osteoarthritis by 85
B Cells Can Act Alone in Autoimmune Diseases
Majority of College Students Report Backpack-Related Pain
CANCER
Researchers ID Genetic Markers for Esophageal Cancer
HPV Vaccine Has Higher Allergic Reaction Rate
Smoking Exposure Now Linked to Colon, Breast Cancers
CAREGIVING
Baby's Sleep Position May Not Affect Severity of Head Flattening
New Guidelines for Treating Heart Failure
Hospital Volume Imperfect Gauge of Cancer Surgery Outcomes
CIRCULATORY SYSTEM
Common Antioxidant Might Slow Parkinson's
Bye, Bye Back Fat?
A Brisk Pace May Keep Stroke at Bay
COSMETIC
Science May Banish Bad Hair Days
Mouse Study Finds Molecule That Tells Hair to Grow
With Psoriasis, the Internet May Offer Hope
DENTAL, ORAL
Rheumatoid Arthritis May Harm Gums
Obesity Boosts Gum Disease Risk
Acupuncture May Ease Anxiety Over Dental Work
DIABETES
Spices, Herbs Boost Health for Diabetics
Findings Challenge Tight Glucose Control for Critically Ill Patients
Insulin Resistance Tied to Peripheral Artery Disease
DIET, NUTRITION
Six Healthy-Sounding Foods That Really Aren't
Eating Healthy : You Can Live Longer
The Best Diet? That Depends on You
DISABILITIES
Review Finds Marijuana May Help MS Patients
Could Your Cell Phone Help Shield You From Alzheimer's?
ENVIRONMENTAL HEALTH
Small Doses of Carbon Monoxide Might Help Stroke Victims
Staying Slim Is Good for the Environment
Air Quality Better in Northeast, Midwest
EYE CARE, VISION
Just Like Skin, Eyes Can 'Burn' in Strong Sun
Impotence Drugs Don't Harm Vision: Study
Too Much Sun, Too Few Antioxidants Spell Eye Trouble
FITNESS
Tai Chi: An Ideal Exercise for Many People with Diabetes
Fitness Fades Fast After 45
Women Who Run May Benefit From Extra Folic Acid
GASTROINTESTINAL PROBLEMS
Traditional Nonsurgical GERD Treatments Not Impressive
Bowel Prep Harder on Women Than Men
Peppermint Oil, Fiber Can Fight Irritable Bowel
GENERAL HEALTH
Dry Weather Boosts Odds of Flu Outbreaks
Have Fun But Put Play It Safe on the 4th
Health Gains From Lowered Smoking Rates in Jeopardy
HEAD & NECK
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
Many Children Will Outgrow Headaches
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
The Internet Is Becoming One-Stop Shopping for Health Help
'Cell Phone Elbow' -- A New Ill for the Wired Age
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Man's Best Friend Helps Mend Broken Hearts
Psychiatric Drugs Might Raise Cardiac Death Risk
Brown Rice Tied to Better Heart Health in Study
INFECTIOUS DISEASE
Hand Washing 10 Times a Day May Help Keep Flu Away
The HPV Vaccine: Preventative Medicine or Human Sacrifice?
Swine Flu Is Now a Pandemic Says W.H.O.
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Scorpion Anti-Venom Speeds Children's Recovery
Childhood Dairy Intake Boosts Bone Health Later On
Time to Remind Teens About Sun Protection
MEN'S HEALTH
Varicose Veins May Mask Larger Problem
The Dark Side of Vegetarianism
More Vitamin C May Mean Less Chance of Gout
MENTAL HEALTH
Shop 'Til You Drop: You May Feel Better
Common Social Groups and Race, Seem to Help People Relate
Teen Internet Addicts More Likely to Self-Harm: Study
PAIN
Alleviating Rheumatoid Arthritis
Are We Exercising Pain Away? Not So Much.
Acupuncture, Real or Fake, Eases Back Pain
PHYSICAL THERAPY
PREGNANCY
Woman in America Are Delaying Motherhood, Study Says
Mom's Extra Pregnancy Pounds May Raise Child's Heart Risks
Placebo Acupuncture Tied to Higher IVF Pregnancies
SENIORS
Tai Chi and Qigong Offer Many Health Benefits: Review
The Juice From Beetroots May Boost Stamina
Rapid Weight Loss in Seniors Signals Higher Dementia Risk
SEXUAL HEALTH
SLEEP DISORDERS
Sleeping Could Help Women Lose The Baby Fat
Better Sleep, Grades Seem to Go Up
6 to 8 Hours of Shut-Eye Is Optimal for Health
WOMEN'S HEALTH
Mom and Baby Alike May Benefit From Exercise
Green Tea May Help Treat Uterine Fibroids
Rheumatoid Arthritis Rising Among U.S. Women
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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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