TUESDAY, May 21 (HealthDay News) -- Aggressive treatment for prostate cancer may not be warranted for many older patients with underlying medical conditions, a new study finds.

MONDAY, May 20 (HealthDay News) -- Injections of a sugar solution appear to help relieve knee pain and stiffness related to osteoarthritis, a new study suggests.

SATURDAY, May 18 (HealthDay News) -- Vitamin D supplements may help those with Crohn's disease overcome the fatigue and decreased muscle strength associated with the inflammatory bowel disease, according to new research.

THURSDAY, May 16 (HealthDay News) -- The U.S. Food and Drug Administration has approved a drug to help men with advanced prostate cancer whose disease has spread to the bones.

(HealthDay News) -- Lower back pain is among the leading causes of missed work in the United States. Fortunately, you can take steps to reduce your risk of hurting yourself.

WEDNESDAY, May 15 (HealthDay News) -- If you're a man, the pain-killing medications known as opioids may do more than relieve pain -- they may also put a damper on your sex life.

SATURDAY, May 11 (HealthDay News) -- Spending more time in physical education classes helps students develop muscle strength and doesn't increase their risk of broken bones, a new study finds.

WEDNESDAY, May 8 (HealthDay News) -- Mutations in a gene involved in bone development appear to cause certain severe forms of bone loss, a finding that could lead to new therapies for the common bone-thinning disorder osteoporosis, researchers report.

WEDNESDAY, May 8 (HealthDay News) -- A baseball pitched at more than 90 miles per hour or a tennis ball swatted at even greater speeds leaves opponents mere split-seconds to ready themselves for a savvy return. So how can the human brain track such small objects traveling at such high speeds?

TUESDAY, May 7 (HealthDay News) -- Magnesium may be as crucial to children's bone health as calcium, according to a small, early study.