(HealthDay News) -- Tummy time helps babies develop strong muscles, but your infant may be less than enthusiastic about the idea.

(HealthDay News) -- If all types of lung disease were combined, it would be the third-largest killer in the United States, the U.S. National Women's Health Information Center says.

WEDNESDAY, Jan. 12 (HealthDay News) -- The next time you have a first date, forget about chemistry and common interests.

WEDNESDAY, Jan. 12 (HealthDay News) -- Bottle rockets can cause serious eye injuries to children that can lead to permanent vision loss, a new study warns.

WEDNESDAY, Jan. 12 (HealthDay News) -- Even though they can't talk yet, babies just over a year old understand many spoken words and use the same brain structures as adults to process them, according to a new study.

WEDNESDAY, Jan. 12 (HealthDay News) -- So you think your dog is smart? A Border collie named Chaser managed to learn the names of 1,022 objects over three years, say U.S. researchers.

WEDNESDAY, Jan. 12 (HealthDay News) -- Research in rats suggests that "rebooting" the brain can help stop tinnitus, a condition characterized by persistent ringing or other noises in the ears.

WEDNESDAY, Jan. 12 (HealthDay News) -- If you get the stomach flu (also known as viral gastroenteritis), there are a number of things you can do to cope with the illness, an expert suggests.

WEDNESDAY, Jan. 12 (HealthDay News) -- The recession did not have much impact on rates of child maltreatment in the United States, the results of a new study suggest.

WEDNESDAY, Jan. 12 (HealthDay News) -- High levels of HDL cholesterol -- the "good" kind -- have long been thought to help protect against heart disease. But new research finds that having high levels of HDL cholesterol may matter less than how well the good cholesterol functions -- that is, how well it works to rid the body of excess cholesterol.

TUESDAY, Jan. 11 (HealthDay News) -- Common painkillers taken to treat inflammation, such as Celebrex and Advil, can raise the risk of heart attack, stroke or death, a review of existing research suggests.

TUESDAY, Jan. 11 (HealthDay News) -- The disgraced doctor who published a study more than 10 years ago claiming that a common childhood vaccine -- the measles-mumps-rubella inoculation -- causes autism may have been motivated more by money than conviction, investigators say.

WEDNESDAY, Jan. 12 (HealthDay News) -- If you sit all day at an office and worry about its effect on your weight and health, take a few breaks.

WEDNESDAY, Jan. 12 (HealthDay News) -- Just over 8 percent of Americans have asthma, according to the latest estimates from the U.S. Centers for Disease Control and Prevention.

WEDNESDAY, Jan. 12 (HealthDay News) -- Amid the ongoing controversy over routine antibiotic use for children with acute ear infections, two new studies support the practice when stringent diagnostic criteria are met.

WEDNESDAY, Jan. 12 (HealthDay News) -- Arizona Congresswoman Gabrielle Giffords continues to make progress, her doctors said Tuesday, breathing on her own and moving both arms just four days after an assassin's bullet struck her brain.

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

WEDNESDAY, Jan. 12 (HealthDay News) -- By 2020, the annual cost of cancer care in the United States is expected to reach at least $158 billion -- a 27 percent jump from 2010, according to a report from the U.S. National Cancer Institute.

WEDNESDAY, Jan. 12 (HealthDay News) -- People who have direct-to-consumer genetic testing don't experience any short-term increase in anxiety after receiving the results, whether they are positive or negative, researchers report.