FRIDAY, Aug. 5 (HealthDay News) -- In a decade or so, people now clamoring for metal and ceramic replacement joints may instead be able to have a fully functional biological replacement -- a joint grown within their own bodies to their specific physiology.

(HealthDay News) -- Eating disorders, including anorexia and bulimia, may affect the health of your teeth and gums.

(HealthDay News) -- Diabetes is a chronic disease characterized by elevated levels of blood sugar.

FRIDAY, Aug. 5 (HealthDay News) -- Exposure to household mold in infancy greatly increases a child's risk of developing asthma, a new study says.

FRIDAY, Aug. 5 (HealthDay News) -- The most common type of weight loss surgery in the United States appears to help patients shed pounds by reducing their intake of fatty foods and helping them stick to a healthier diet, a new study indicates.

FRIDAY, Aug. 5 (HealthDay News) -- Weight loss improves the sexual health of obese men with type 2 diabetes, a new study finds.

FRIDAY, Aug. 5 (HealthDay News) -- NASCAR drivers get most of the attention, but they're not the only ones at the track who need athletic ability and stamina.

FRIDAY, Aug. 5 (HealthDay News) -- Smokers who take a multivitamin pill may think they can smoke more because the supplement protects them from the harmful affects of cigarettes, according to a new study.

FRIDAY, Aug. 5 (HealthDay News) -- Smoking increases the risk of developing a heart rhythm disorder called atrial fibrillation, a new study warns.

FRIDAY, Aug. 5 (HealthDay News) -- Children with HIV who receive antiretroviral treatments have persistently high cholesterol and other blood fat (lipid) levels, and would benefit from guidelines aimed at reducing their long-term heart risks, researchers say.

FRIDAY, Aug. 5 (HealthDay News) -- Germs used to be viewed as only bad, but scientists who have taken navel-gazing to a new level are finding that the ones living in your belly button coexist quite nicely with the rest of your body's microbes.

FRIDAY, Aug. 5 (HealthDay News) -- Post-traumatic stress disorder was reported by 15.4 percent of Virginia Tech students several months after the shooting rampage at the school in April 2007, a new study indicates.

FRIDAY, Aug. 5 (HealthDay News) -- Although women whose mothers had breast cancer may worry about developing cancer themselves, many do not fully understand when and why they should be screened or their options to reduce their risk for the disease, a new study suggests.

FRIDAY, Aug. 5 (HealthDay News) -- For older Americans who decide to get more physically active, a new study finds that performance often trumps appearance.

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

FRIDAY, Aug. 5 (HealthDay News) -- Believing in a benevolent God may help reduce worry and improve a person's ability to cope with uncertainty, researchers report.