Health Tip: When a Bite Isn't Right

(HealthDay News) -- A "bad bite," medically called malocclusion, occurs when the jaw becomes out of alignment due to crowded or crooked teeth.

Health Tip: Coping With Shoulder Arthritis

(HealthDay News) -- Arthritis of the shoulder occurs when the shoulder joint becomes inflamed, causing pain and stiffness.

Flame-Retardant Chemicals Could Be Toxic to Kids

MONDAY, May 6 (HealthDay News) -- Exposure to flame-retardant chemicals in the womb is associated with hyperactivity and lower intelligence in children, a new study indicates.

More Than 4 in 10 U.S. Teens Text While Driving: Survey

SATURDAY, May 4 (HealthDay News) -- Forty-three percent of American high school students admit to texting while driving, according to a new study.

Hospitals Enact Policies to Curb Early Childbirth

MONDAY, May 6 (HealthDay News) -- Hoping to curb elective Cesarean births and labor inductions, two-thirds of U.S. hospitals have implemented policies to eliminate medically unnecessary pre-term births, a new study reports.

No Need to Toss Your Child's Toothbrush After Strep Throat, Study Suggests

SATURDAY, May 4 (HealthDay News) -- Parents often are advised to replace children's toothbrushes after they've had strep throat, but that might be misguided, a new study suggests.

Study Links Timing of ER Visit to Prostate Cancer Survival Odds

MONDAY, May 6 (HealthDay News) -- Men with prostate cancer that has spread to other parts of their body are more likely to die after visiting an emergency department on the weekend rather than a weekday, a new study finds.

School Sports May Cut Rates of Violence, Bullying Among Teens

SUNDAY, May 5 (HealthDay News) -- Playing school sports is known to have many benefits for teens, but researchers have found a new reason to encourage kids to take up a sport: It may reduce teen girls' likelihood of being involved in violence and some teen boys' risk of being bullied.

16 Percent of U.S. High Schoolers Victims of Cyberbullying: Study

SUNDAY, May 5 (HealthDay News) -- About 16 percent of U.S. high school students are victims of cyberbullying, according to a new study.

Many Suicidal Kids Have Access to Guns at Home: Study

MONDAY, May 6 (HealthDay News) -- Nearly one-fifth of children and teens at risk for suicide say there are guns in their homes, and many know how to get their hands on both the guns and the bullets, a new study of U.S. emergency room patients found.

High School Football Players Often Not Deterred by Head Injury

MONDAY, May 6 (HealthDay News) -- Many U.S. high school football players say they would keep playing after experiencing a concussion, even though they know it would put them at risk for serious harm, a new study reveals.

Most Docs Don't Follow ADHD Treatment Guidelines for Preschoolers: Study

SATURDAY, May 4 (HealthDay News) -- About 90 percent of pediatric specialists who diagnose and manage attention-deficit/hyperactivity disorder (ADHD) in preschool children do not follow treatment guidelines published recently by the American Academy of Pediatrics, according to a new study.

Can High-Protein, Low-Carb Diet Boost Fertility Treatment?

MONDAY, May 6 (HealthDay News) -- Women who are undergoing fertility treatment may be more likely to conceive if they get a good amount of protein in their diets, a small new study suggests.

More Kids Diagnosed With Mental Health Disabilities, Study Finds

SUNDAY, May 5 (HealthDay News) -- Significantly more U.S. children have a neurodevelopmental or mental health disability than did a decade ago, according to new research.

Want Tots Without Allergies? Try Sucking on Their Pacifiers

MONDAY, May 6 (HealthDay News) -- A new Swedish study suggests that parents who want to protect their infants from developing allergies should try a simple approach to introducing their children to the wide world of microbes: Just pop their pacifiers into their own mouths before giving them back to their babies.

Pediatricians Endorse New Acne Treatment Guidelines

MONDAY, May 6 (HealthDay News) -- Pimples have long been the bane of teenage existence, but pediatricians say there is now enough evidence on effective treatments to put out the first guidelines on battling acne in children.

Death Rate Dropping for Children on Dialysis: Study

SATURDAY, May 4 (HealthDay News) -- The death risk for American children and teens undergoing dialysis for kidney failure has dropped significantly in recent decades, a new study finds.

Omega-3s No Help Against Age-Linked Eye Trouble: Study

SUNDAY, May 5 (HealthDay News) -- Adding omega-3 fatty acids and other nutrients to standard antioxidant vitamins doesn't give older people any added protection against a leading cause of blindness, a new study finds.

Many Parents Texting, Phoning While Driving Their Kids: Survey

MONDAY, May 6 (HealthDay News) -- The vast majority of parents admit to being distracted in some way while driving their young child around, a new survey reveals.

Most Men With Erectile Dysfunction Don't Seem to Get Treatment

MONDAY, May 6 (HealthDay News) -- Never mind the commercials with men talking freely to their doctor about their erectile dysfunction, taking a prescription for treatment to the pharmacy and settling in for a romantic evening.

Health Highlights: May 6, 2013

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