Health Tip: Is Knee Replacement Safe?

(HealthDay News) -- Knee replacement surgery may be a solution for disabling arthritis, pain caused by other medical problems, or a tumor affecting the knee.

Health Tip: Diabetics Should Eat on Schedule

(HealthDay News) -- If you've got diabetes, staying on a regular eating schedule will help you maintain better glucose control.

Slowed Reflexes in Aging Could Be Due to Brain Changes

TUESDAY, Aug. 24 (HealthDay News) -- Breakdowns in brain connections may be the reason why your physical response times slow as you age, a new study has found.

Vitamin D May Influence Genes for Cancer, Autoimmune Disease

TUESDAY, Aug. 24 (HealthDay News) -- Scientists have discovered a link between vitamin D and genes related to autoimmune diseases and cancer.

A Little Drinking Cuts Death Risk for Older Adults

TUESDAY, Aug. 24 (HealthDay News) -- While the debate over the possible health benefits of drinking continues to bubble, a new study finds that abstainers and heavy drinkers have a higher mortality risk than moderate drinkers.

Herpes Drugs Won't Raise Birth Defect Risk, Study Finds

TUESDAY, Aug. 24 (HealthDay News) -- Pregnant women who take antiviral drugs against the herpes virus should not worry that their use will cause birth defects, Danish researchers report.

Study Suggests Link Between Diet Sodas, Preterm Delivery

TUESDAY, Aug. 24 (HealthDay News) -- Could drinking one or more artificially sweetened, carbonated diet sodas a day boost a woman's odds of premature delivery? A new study from Denmark suggests such a link.

Pump Placed in Aorta Doesn't Improve Angioplasty Outcomes: Study

TUESDAY, Aug. 24 (HealthDay News) -- Patients who chose to have a special pump placed in their heart's aorta before undergoing procedures to open blocked arteries didn't have improved outcomes, new research shows.

2002 Oil Spill May Shed Light on Health Problems for Deepwater Workers

MONDAY, Aug. 23 (HealthDay News) -- The fate of fishermen involved in cleaning up a massive oil spill off the northwest coast of Spain in 2002 could shed light on potential health problems facing workers involved in the recent Deepwater disaster in the Gulf of Mexico.

Migraine With Aura Linked to Small Rise in Heart, Stroke Risks

TUESDAY, Aug. 24 (HealthDay News) -- People who suffer migraines with aura are at increased risk of dying from heart disease and stroke, but the individual risk for a migraine sufferer is low, two new studies show.

Survival Rates Better for Certain Heart Transplant Patients

TUESDAY, Aug. 24 (HealthDay News) -- Patients who have a heart transplant to correct the most common type of genetic heart disease -- hypertrophic cardiomyopathy -- have better long-term survival rates than those who have transplants for other heart diseases, a new study finds.

Nicotine Can Fuel Breast Cancer, Study Suggests

TUESDAY, Aug. 24 (HealthDay News) -- Nicotine may directly promote the development of breast cancer by binding to a certain cell receptor, says a new study.

Health Highlights: Aug. 24, 2010

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

Clinical Trials Update: Aug. 24, 2010

(HealthDay News) -- Here are the latest clinical trials, courtesy of

Scientists Dismayed by Stem Cell Research Ruling

TUESDAY, Aug. 24 (HealthDay News) -- U.S. scientists are reacting with dismay to Monday's decision by a U.S. judge to halt any expansion of stem cell research using federal funds.

Cognitive Therapy Helps Adults With ADHD

TUESDAY, Aug. 24 (HealthDay News) -- Adding therapy to the medications an adult might be taking for attention-deficit/hyperactivity disorder (ADHD) could lessen symptoms and improve quality of life, new research suggests.

Heart Risks the Same With 2 Diabetes Drugs: Study

TUESDAY, Aug. 24 (HealthDay News) -- A new study finds that the risk of heart attacks or death after taking the glucose-lowering diabetes drugs Avandia and Actos are about the same.