(HealthDay News) -- Your vision may weaken as you get older, but the Cleveland Clinic says there are things you can do to maintain the health of your eyes:

(HealthDay News) -- Monitoring your child's diet and limiting sugar intake can help protect the child from cavities.

WEDNESDAY, Feb. 29 (HealthDay News) -- Sports-related concussions are common in the United States, but there are many misconceptions about this type of head injury, according to an expert.

WEDNESDAY, Feb. 29 (HealthDay News) -- People worried about losing their jobs become dissatisfied with many aspects of their life and their work performance, and their commitment suffers, a new study indicates.

WEDNESDAY, Feb. 29 (HealthDay News) -- All children can benefit from going to preschool, especially those who come from minority or poor families or from homes where parents don't provide much mental stimulation, a new study says.

WEDNESDAY, Feb. 29 (HealthDay News) -- Children with a depressed father are more likely to have emotional or behavioral problems, new research finds.

WEDNESDAY, Feb. 29 (HealthDay News) -- Strict enforcement of underage drinking laws reduces the odds that teenagers will commit alcohol-related crimes as adults, a new study suggests.

WEDNESDAY, Feb. 29 (HealthDay News) -- It might be a good idea to use heart bypass operations as an opportunity to fix mild to moderate cases of leaky mitral valves, a new study shows.

WEDNESDAY, Feb. 29 (HealthDay News) -- Children and teens who are overweight or obese are more likely to have asthma than their healthy-weight peers, a new study finds.

WEDNESDAY, Feb. 29 (HealthDay News) -- Seniors may not benefit from prostate cancer treatment, according to a new study that found aggressive therapy has become more common among men with short life expectancies and less aggressive forms of the disease.

WEDNESDAY, Feb. 29 (HealthDay News) -- Added sugar in drinks and foods makes up almost 16 percent of the calories U.S. children and teens consume, federal health officials report.

WEDNESDAY, Feb. 29 (HealthDay News) -- Nicotine patches don't seem to be of much use in helping pregnant women quit smoking, a new study finds.

TUESDAY, Feb. 28 (HealthDay News) -- While getting the right amount of selenium in your diet can boost your immune function and lower your risk of death, you can get too much of a good thing. Higher-than-normal levels of selenium may contribute to the development of type 2 diabetes, hair loss and certain cancers, a new review of evidence finds.

WEDNESDAY, Feb. 29 (HealthDay News) -- Patients who have heart disease and take cholesterol-lowering medicines known as statins are less likely to develop depression than those not on such drugs, a new study suggests.

WEDNESDAY, Feb. 29 (HealthDay News) -- Federal laws requiring medical companies to conduct pediatric drug studies have helped provide guidance on whether it's safe or effective for children to use certain medications, a new U.S. report finds.

WEDNESDAY, Feb. 29 (HealthDay News) -- New research in mice suggests that Alzheimer's disease triggers a protein that contributes to the breakdown of the brain's memory.

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

WEDNESDAY, Feb. 29 (HealthDay News) -- Two new studies confirm that the new drug ruxolitinib can help people with the rare bone marrow disorder called myelofibrosis.

WEDNESDAY, Feb. 29 (HealthDay News) -- A drug that's typically used to treat the flu and Parkinson's disease appears to speed recovery in traumatic brain injury patients, a new study indicates.

WEDNESDAY, Feb. 29 (HealthDay News) -- A federal judge on Wednesday blocked implementation of an FDA mandate that would have forced tobacco companies to place graphic anti-smoking images on packages of cigarettes.