(HealthDay News) -- By the time they're 5, about 8 percent of girls and up to 2 percent of boys will have had a urinary tract infection (UTI), the Nemours Foundation says.

(HealthDay News) -- Pinworm is the most common worm infection in the United States, the U.S. Centers for Disease Control and Prevention confirms.

FRIDAY, Dec. 17 (HealthDay News) -- Among people with rheumatoid arthritis, 11 percent of those surveyed didn't know what a rheumatologist is, even if they had been seeing one for quite a while.

FRIDAY, Dec. 17 (HealthDay News) Christmas and other winter holidays are supposed to be a happy time of year, which makes it all the more stressful when they are anything but joyous.

FRIDAY, Dec. 17 (HealthDay News) -- Contrary to popular belief, acid reflux disease, better known as heartburn, is not much of a risk factor for esophageal cancer for most people, according to new research.

FRIDAY, Dec. 17 (HealthDay News) -- Differences in immune signaling pathways among various species may explain why humans are more susceptible than other primates to certain infectious diseases, researchers say.

FRIDAY, Dec. 17 (HealthDay News) -- Store aisles are jammed, menorahs have been lit, and houses and Christmas trees are adorned with lights, which can only mean the holidays are officially in full swing.

FRIDAY, Dec. 17 (HealthDay News) -- Children and adults with kidney disease caused by the autoimmune disease lupus have a higher risk of death than those with other types of kidney disease, researchers have found.

FRIDAY, Dec. 17 (HealthDay News) -- When your relatives get together over the holidays, it may be a good opportunity to investigate your family history, including its health history, suggests a genetics expert.

FRIDAY, Dec. 17 (HealthDay News) -- The more obese a person is, the poorer his or her vitamin D status, a new study by a team of Norwegian researchers suggests.

FRIDAY, Dec. 17 (HealthDay News) -- Scott Galloway's perspective as a high school athletic trainer changed the day a 14-year-old female basketball player at his school suffered sudden cardiac arrest and died on the court.

FRIDAY, Dec. 17 (HealthDay News) -- Exposure to violent video games or television shows is not a strong predictor of aggression or violence among youth, says a new study from Texas A&M International University.

FRIDAY, Dec. 17 (HealthDay News) -- Parents who read to their newborns in the intensive care unit feel closer to their babies during this difficult time, a new study finds.

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

FRIDAY, Dec. 17 (HealthDay News) -- The health of nonsmokers who move into homes previously inhabited by smokers could be threatened by tobacco toxins lodged in dust and on surfaces, a new study finds.

FRIDAY, Dec. 17 (HealthDay News) -- Medtronic's Arctic Front Cardiac CryoAblation Catheter system has been approved by the U.S. Food and Drug Administration to treat atrial fibrillation, the company said in a news release.