ALLERGY, RESPIRATORY
Overweight Moms More Likely to Have Asthmatic Kids
Using Music and Sports to Improve Kids' Asthma
Air Quality Better in Northeast, Midwest
ALTERNATIVE MEDICINE
Relaxation Tapes or Mozart Lower Blood Pressure
Green Tea May Help Brain Cope With Sleep Disorders
Acupuncture, Real or Fake, Eases Back Pain
ANIMAL CARE
Safe Toys for Dogs
Separation Anxiety, Canine-Style
Beware of Dog Bites
BONES & JOINTS
Body Fat, Muscle Distribution Linked to RA Disability
Breast-feeding Might Shield Women From Rheumatoid Arthritis
Rheumatoid Arthritis a Threat to the Heart
CANCER
Exercise Cuts Lung Cancer Risk in Ex-Smokers by 45%
Adding Garlic Might Cut Cancer Risk
Quitting Smoking Doubles Survival in Early Stage Lung Cancer
CAREGIVING
Hospital Volume Imperfect Gauge of Cancer Surgery Outcomes
Timing May Matter in Organ Donation Decisions
Acute Respiratory Distress Syndrome as Deadly as Ever
CIRCULATORY SYSTEM
High Blood Fat Levels Common in Americans
Obesity Linked to Heart Failure Risk
Varicose Veins May Mask Larger Problem
COSMETIC
What to Do If You Have Unsightly Veins
Health Tip: After Liposuction
New Genetic Links to Baldness Discovered
DENTAL, ORAL
Gum Disease May Reactivate AIDS Virus
Most Insured Adults Worry About Health Care Costs: Poll
Dental Implants Need More Work Than Root Canals
DIABETES
Fish Twice a Week Cuts Diabetics' Kidney Risks
Red-Grape Compound May Improve Diabetes
Study Shows Turmeric May Prevent Type 2 Diabetes
DIET, NUTRITION
DASH Diet Has Extra Benefits for Women's Health
Many Cancer Survivors Don't Adopt Healthy Lifestyle
Research Confirms How Valuable A Healthy Lifestyle Can Be
DISABILITIES
Could Your Cell Phone Help Shield You From Alzheimer's?
Review Finds Marijuana May Help MS Patients
ENVIRONMENTAL HEALTH
Seasons Arriving 2 Days Earlier, Study Says
Accumulated Lead May Affect Older Women's Brains
Warmer-Than-Average Temperatures Raise Migraine Risk
EYE CARE, VISION
Time Teaches Brain to Recognize Objects
High Temps Degrade Contact Lens Solution: Study
Unconscious Learning: In the Eye of the Beholder?
FITNESS
When It Comes to Lifting, the Pros Have Your Back
Marathoners Go the Distance on Heart Health
Vigorous Exercise Can Cut Breast Cancer Risk
GASTROINTESTINAL PROBLEMS
Olive Oil May Protect Against Bowel Disease
HRT Use Raises Risk of Stomach Trouble
Peppermint Oil, Fiber Can Fight Irritable Bowel
GENERAL HEALTH
Vitamin E Helps Treat Common Liver Disease
Healthy Living Adds Years to Life
Eating Healthy : You Can Live Longer
HEAD & NECK
Many Children Will Outgrow Headaches
Zen May Thicken Brain, Thwart Pain
Ski Helmets Encouraged for All
HEALTH & TECHNOLOGY
Imaging Sheds Light on How Acupuncture Works
Save Your Aging Brain, Try Surfing The Web
The Internet Is Becoming One-Stop Shopping for Health Help
HEARING
Noise Hurts Men's Hearing More, Study Shows
Summer Sounds Can Lead to Hearing Loss
HEART & CARDIOVASCULAR
Vigorous Exercise Cuts Stroke Risk for Men, Not Women
Psychiatric Drugs Might Raise Cardiac Death Risk
Brown Rice Tied to Better Heart Health in Study
INFECTIOUS DISEASE
Swine Flu Is Now a Pandemic Says W.H.O.
Swine Flu Now Reported in All 50 States
Older Adults May Have Some Immunity to Swine Flu
INFERTILITY
Obesity May Affect Fertility in Young Womene
KID'S HEALTH
Working Intensely Early on May Help Autistic Kids
Teens Lose More Weight Using Healthy Strategies
Babies Cared For In Others Homes Might Become Heavy Toddlers
MEN'S HEALTH
Lots of Sex May Prevent Erectile Dysfunction
Whole Grains, Bran May Fight Hypertension in Men
Exercise May Prevent Prostate Cancer: Study Shows
MENTAL HEALTH
Estrogen May Help Men's Hearts
Man's Best Friend Helps Mend Broken Hearts
The Acne Drug Accutane More Than Doubles Depression Risk
PAIN
Are We Exercising Pain Away? Not So Much.
Alleviating Rheumatoid Arthritis
'Cell Phone Elbow' -- A New Ill for the Wired Age
PHYSICAL THERAPY
PREGNANCY
Woman in America Are Delaying Motherhood, Study Says
Before Conceiving, Take Folic Acid for One Full Year
Heart Defects in Newborns Linked to Antidepressants
SENIORS
Community Exercise Programs Boost Seniors' Strength
Mediterranean Diet Plus Exercise Lowers Alzheimer's Risk
15-Point Test Gauges Alzheimer's Risk
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
Active Young Women Need Calcium, Vitamin D
Vitamin D Deficiency Puts 40% of U.S. Infants and Toddlers At Risk
Prenatal Stress May Boost Baby's Asthma Risk
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Almost Half of Adults Will Develop Knee Osteoarthritis by 85

FRIDAY, Sept. 5 (HealthDay News) -- Almost half of all American adults will develop osteoarthritis of the knee by age 85, and their odds increase if they are obese in middle age, a new study says.

A person's risk of having the painful condition increased as his or her body-mass index (BMI) rose, according to the University of North Carolina at Chapel Hill study. People who were of normal weight at age 18 but were overweight or obese by 45 or older had the greatest risk.

"These results show how important weight management is for people throughout their lives," senior study author Joanne Jordan, principal investigator of the Johnston County Osteoarthritis Project, said in a university news release. "Simply put, people who keep their weight within the normal range are much less likely to develop symptomatic knee osteoarthritis as they get older and thus much less likely to face the need for major surgical procedures, such as knee replacement surgery."

The study, published in the Sept. 15 issue of Arthritis Care & Research, was based on analyzing data collected from more than 3,000 North Carolinians over a 13-year period. Participants were interviewed and given a clinical exam, including knee X-rays and BMI measurements.

Obese people had a significantly higher lifetime risk, 64.5 percent versus 34.9 percent for normal weight and 44.1 percent for overweight participants. Those with prior knee injuries in their lifetime also had a higher risk than those without (56.8 percent vs. 42.3 percent).

No notable risk differences were found based on a participant's sex, race or education level.

More information

The Arthritis Foundation has more about osteoarthritis.



-- Kevin McKeever



SOURCE: University of North Carolina at Chapel Hill, news release, Sept. 2, 2008

Last Updated: Sept. 05, 2008

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