Health Tip: Understanding Corns and Calluses

(HealthDay News) -- Corns form on the tops of the feet and toes, and calluses form on the soles. Both are areas of thickened skin that arise from friction.

Health Tip: Controlling Dust and Dust Mites

(HealthDay News) -- Many people are allergic to dust, and to the tiny mites that thrive inside it.

Many Bullied Teens Carry Weapons to School, Study Finds

SUNDAY, May 4, 2014 (HealthDay News) -- Large numbers of U.S. high school students who are bullied take weapons to school, a new study finds.

Smoking in Pregnancy May Be Linked to Baby's Heart Defects

SATURDAY, May 3, 2014 (HealthDay News) -- New research suggests that mothers who smoke early in pregnancy put their unborn child at greater risk of heart defects, and the risk goes up as smoking increases.

Substance Use at School Could Be Cry for Help

SATURDAY, May 3, 2014 (HealthDay News) -- Teens caught smoking pot or drinking alcohol at school may have deeper problems and should undergo screening for serious health risks, a new study indicates.

Many Parents Not Following Safe Sleep Practices for Babies

SATURDAY, May 3, 2014 (HealthDay News) -- As many as half of infants in some parts of the United States aren't being put to sleep on their backs, new research finds, even though it would reduce the risk of Sudden Infant Death Syndrome (SIDS).

Study Finds Steroids May Not Be Helpful After Infant Liver Surgery

SATURDAY, May 3, 2014 (HealthDay News) -- High doses of steroids may not benefit infants who've had surgery for a serious liver disease, and the drugs may even cause harm, according to a new study.

Disease Outbreaks May Not Change Minds of Vaccine Opponents

MONDAY, May 5, 2014 (HealthDay News) -- Health experts who hope that outbreaks of childhood illnesses might spur vaccine-refusing parents to change their stance may be discouraged by results of a large new study.

Readmission to Another Hospital May Threaten Patient Safety: Study

MONDAY, May 5, 2014 (HealthDay News) -- Patients released from one hospital and readmitted to another hospital within 30 days are more likely to die within a month than those readmitted to the same hospital, according to a large new study from Canada.

Depression Tied to Crohn's Disease Flare-Ups

SATURDAY, May 3, 2014 (HealthDay News) -- Depression may increase the risk of Crohn's disease flare-ups in people with the inflammatory bowel disorder, an early new study suggests.

In Crashes That Kill Children, It's Their Driver Who's Often Drunk

MONDAY, May 5, 2014 (HealthDay News) -- One horrific scenario typically comes to mind when thinking about a child killed in a drunk driving crash.

Young Adults Think E-Cigs Safer Than Tobacco Ones

SUNDAY, May 4, 2014 (HealthDay News) -- A small number of young parents are using electronic cigarettes (e-cigarettes), while a wide majority of young adults believe e-cigarettes are less hazardous than regular cigarettes, according to a new survey.

Nightmares May Haunt Bullied Kids

SATURDAY, May 3, 2014 (HealthDay News) -- New research suggests that kids who are bullied when they're younger may be more likely to suffer from nightmares and night terrors a few years later.

Kids' Diabetes Rates Up Dramatically in 8 Years, Study Finds

SATURDAY, May 3, 2014 (HealthDay News) -- Rates of diabetes in U.S. children have jumped sharply in just eight years, according to new research.

New Colon Polyp Removal Method May Be Easier on Patients

MONDAY, May 5, 2014 (HealthDay News) -- A team-based procedure for removing difficult or large precancerous colon polyps is effective and eliminates the need to take out part of a person's colon to reduce their cancer risk, a small clinical trial shows.

Genes, Environment May Play Equal Parts in Autism Risk: Study

SATURDAY, May 3, 2014 (HealthDay News) -- A new study suggests that nature and nurture may be equal partners in the origins of autism.

Prenatal Fish Oil Supplements May Not Boost Child's Brain Health, Study Finds

SATURDAY, May 3, 2014 (HealthDay News) - Despite public health recommendations that women consume omega-3 fatty acid supplements while pregnant, new research suggests that offspring do not gain any mental health benefit from the intervention.

Whooping Cough Vaccination During Pregnancy Seems Safe: Study

SATURDAY, May 3, 2014 (HealthDay News) -- Vaccinating pregnant women during their third trimester to prevent tetanus, diphtheria and pertussis in their future offspring appears to be safe for both mother and child, new research suggests.

FDA Panel Says No to Over-the-Counter Allergy Drug Singulair

FRIDAY, May 2, 2014 (HealthDay News) -- A panel of expert advisors to the U.S. Food and Drug Administration on Friday voted overwhelmingly against moving the allergy drug Singulair from prescription to over-the-counter status.

1st U.S. MERS Patient Improving, Officials Say

SUNDAY, May 4, 2014 (HealthDay News) -- A man hospitalized in Indiana with the first U.S. case of a deadly respiratory virus that initially surfaced in the Middle East two years ago is improving, state health officials reported Saturday.

Young Blood Boosts Brains of Old Mice

MONDAY, May 5, 2014 (HealthDay News) -- Lending credence to the old saying that there's nothing like young blood, a new study found that the brains of old mice were recharged when they were injected with blood from young mice.

Health Highlights: May 5, 2014

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