WEDNESDAY, June 30 (HealthDay News) -- Research into Alzheimer's disease has reached a point of significant potential, even as the disease's looming impact on society grows more and more dire, experts say.

WEDNESDAY, June 30 (HealthDay News) -- Even though one in eight babies in the United States are born preterm each year, most new or expectant mothers and their doctors don't discuss preterm birth, a new survey shows.

(HealthDay News) -- If you still have pain more than six months after an injury or illness, it's said to be chronic.

(HealthDay News) -- Babies, just as their adult counterparts should, are encouraged to get lots of exercise.

WEDNESDAY, June 30 (HealthDay News) -- New research suggests the combination of a memory test and a brain scan may best predict the likelihood that an individual with mild cognitive problems will go on to develop Alzheimer's disease.

WEDNESDAY, June 30 (HealthDay News) -- High doses of caffeine could increase muscle power and endurance during activities ranging from walking to running a marathon, British researchers report.

WEDNESDAY, June 30 (HealthDay News) -- The movement of three-legged dogs is being studied to help scientists design robots that can adapt in the event of an "injury."

WEDNESDAY, June 30 (HealthDay News) -- An immune cell known to cause inflammation in autoimmune disorders may play a role in back pain associated with herniated discs, says a new study.

WEDNESDAY, June 30 (HealthDay News) -- Brain energy may replenish itself during sleep, a new study suggests.

WEDNESDAY, June 30 (HealthDay News) -- Researchers have implicated eight genes in the development of alopecia areata, a disorder that causes hair to thin and fall out.

WEDNESDAY, June 30 (HealthDay News) -- Overweight and obese people in the Asia-Pacific region have a significantly increased risk of dying from cancer compared to those of normal weight, finds a new study.

WEDNESDAY, June 30 (HealthDay News) -- Research on both mice and frozen human heart tissue has turned up evidence that a key enzyme involved in fetal heart development may also help trigger the onset of a serious heart disease in adulthood.

WEDNESDAY, June 30 (HealthDay News) -- Older men in poor health who use testosterone gel to boost their mobility may raise their odds of high blood pressure or heart attack, new research suggests.

WEDNESDAY, June 30 -- Researchers believe they know why Parkinson's disease patients who received fetal cell transplants in the 1990s developed uncontrolled, involuntary movements, and they think they can prevent the troublesome side effect.

WEDNESDAY, June 30 (HealthDay News) -- If you want to help your young daughter avoid dementia much later on in life, a new study suggests it might be a good idea to send her outside to play.

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

(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

WEDNESDAY, June 30 (HealthDay News) -- Adding to the ongoing debate on the usefulness of the prostate-specific antigen (PSA) blood test for prostate cancer, new research from Sweden finds the screen cuts lives lost to the disease by almost half.