(HealthDay News) -- Listeriosis is an infection with Listeria monocytogenes bacteria, commonly acquired by eating contaminated food. It's particularly dangerous for pregnant women and their fetuses.

(HealthDay News) -- Measles is a very contagious viral illness that can lead to serious complications, including inflammation of the brain (encephalitis), and respiratory or ear infections.

THURSDAY, Dec. 9 (HealthDay News) -- One year after a person is diagnosed with rheumatoid arthritis they are at a 60 percent increased risk of heart attack compared to people without the disease, a new study suggests.

THURSDAY, Dec. 9 (HealthDay News) -- In a finding that seems to counter the prevailing wisdom that any form of hormone replacement therapy raises the risk of breast cancer, a new look at some old data suggests that estrogen-only hormone therapy might protect a small subset of postmenopausal women against the disease.

THURSDAY, Dec. 9 (HealthDay News) -- Good grades in high school might not just help the mind, they might help the body, too.

THURSDAY, Dec. 9 (HealthDay News) Both low and high levels of vitamin D are associated with increased risk of frailty in older women, a new study finds.

THURSDAY, Dec. 9 (HealthDay News) -- A shorter jump-training program may help reduce women basketball players' risk of knee injuries by improving their landing technique, a new study suggests.

THURSDAY, Dec. 9 (HealthDay News) -- Researchers report that they may have hit on a new trick for weight loss: To eat less of a certain food, they suggest you envision yourself gobbling it up beforehand.

THURSDAY, Dec. 9 (HealthDay News) -- Despite massive efforts to curb drunk driving, some 30 million Americans are driving drunk and another 10 million are driving drugged each year, federal officials report.

WEDNESDAY, Dec. 8 (HealthDay News) -- Contrary to conventional wisdom, lifting weights doesn't cause breast cancer survivors to develop the painful, arm-swelling condition known as lymphedema, new research suggests.

THURSDAY, Dec. 9 (HealthDay News) -- A genetic mutation associated with an inherited form of Lou Gehrig's disease -- known in the medical world as amyotrophic lateral sclerosis (ALS) -- has been identified by an international team of researchers.

THURSDAY, Dec. 9 (HealthDay News) -- The United States has failed to reach almost every goal set for women's health, a new report says.

THURSDAY, Dec. 9 (HealthDay News) -- Life expectancy dipped slightly in the United States from 2007 to 2008, according to a new federal report.

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

THURSDAY, Dec. 9 (HealthDay News) -- Only 50 percent of women over age 40 in the United States get an annual mammogram to screen for breast cancer, even if they have insurance to cover the procedure, a new study finds.

THURSDAY, Dec. 9 (HealthDay News) -- As little as one cigarette a day, or even just inhaling smoke from someone else's cigarette, could be enough to cause a heart attack and even death, warns a report released Thursday by U.S. Surgeon General Dr. Regina M. Benjamin.

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

THURSDAY, Dec. 9 (HealthDay News) -- There's no scientific evidence that stricter testing of ground beef used in school lunches and other federal food and nutrition programs would improve the safety of the meat, according to a U.S. National Research Council report released Thursday.

THURSDAY, Dec. 9 (HealthDay News) -- The bone drug zoledronic acid (Zometa), considered a potentially promising weapon against breast cancer recurrence, has flopped in a new study involving more than 3,360 patients.