(HealthDay News) -- The feet and ankles, supporting the weight of the rest of your body, are prime targets for painful injuries. But many can be prevented.

(HealthDay News) -- Everyone should eat a healthy, balanced and nutrient-rich diet, especially seniors, who have special nutritional needs.

WEDNESDAY, April 18 (HealthDay News) -- Overuse injuries account for nearly 30 percent of injuries suffered by college athletes, and 62 percent of such injuries occur in female athletes, a new study finds.

WEDNESDAY, April 18 (HealthDay News) -- Worrying may have co-evolved with intelligence as an important survival trait in humans, new research suggests.

WEDNESDAY, April 18 (HealthDay News) -- Long-term exposure to fine-particle air pollution may increase older adults' risk of being hospitalized for lung and heart disease, stroke and diabetes, a new study says.

WEDNESDAY, April 18 (HealthDay News) -- A gel form of two common Parkinson's drugs delivered via a feeding tube-like device may help people with advanced disease reduce medication side effects and possibly avoid brain surgery.

WEDNESDAY, April 18 (HealthDay News) -- Voice problems affect one in four call center workers, a new study finds.

WEDNESDAY, April 18 (HealthDay News) -- Being upbeat is good for your heart, a new study suggests.

WEDNESDAY, April 18 (HealthDay News) -- Women are more likely than men to be admitted to a nursing home because they're often married to older men who can't provide care at home due to age-related physical problems, a new study finds.

WEDNESDAY, April 18 (HealthDay News) -- The addition of two well-tolerated chemotherapy drugs to radiation therapy led to significantly longer survival rates among patients with muscle-invasive bladder cancer.

WEDNESDAY, April 18 (HealthDay News) -- A new scientific statement issued by the American Heart Association says no convincing evidence exists linking untreated gum disease to heart disease or stroke. Nor is there strong evidence that treating gum disease can reduce your risk of heart disease or stroke, the report says.

WEDNESDAY, April 18 (HealthDay News) -- Scientists report they were able to repair mouse hearts that were damaged by heart attacks.

WEDNESDAY, April 18 (HealthDay News) -- New research suggests that elderly people who move around more -- even gardening or puttering around the house -- are less likely to develop Alzheimer's disease than more sedentary seniors.

WEDNESDAY, April 18 (HealthDay News) -- More young cigarette smokers may also be lighting up joints than was previously thought, a new study finds.

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

WEDNESDAY, April 18 (HealthDay News) -- U.S. billionaire investor Warren Buffett says he has prostate cancer and will undergo radiation treatment in the coming months.

WEDNESDAY, April 18 (HealthDay News) -- Professional fighters may hit a threshold -- a specific number of fights and years in the ring -- where they can no longer take blows to the head without brain damage, a new study suggests.

WEDNESDAY, April 18 (HealthDay News) -- Teens who use the party drugs ecstasy (MDMA) and speed (methamphetamine and/or amphetamine) appear to face a notably higher risk of depression afterward, new Canadian research suggests.

WEDNESDAY, April 18 (HealthDay News) -- The U.S. Environmental Protection Agency on Wednesday issued the first national standards to curb air pollution linked with the controversial practice of "fracking."