FRIDAY, September 3 (HealthDay News) -- A 7-year-old San Diego boy brought back more than souvenirs and memories from a family trip to Switzerland a couple years ago.

FRIDAY, Sept. 3 (HealthDay News) -- Carl Buher came home from the football game feeling rotten.

(HealthDay News) -- For the first few months, newborns need sustenance from either breast milk or formula.

(HealthDay News) -- When the heart beats irregularly, it's called arrhythmia.

FRIDAY, Sept. 3 (HealthDay News) -- Children with sickle cell disease experience more life-threatening complications from the H1N1 swine flu than from seasonal flu, a new study has found.

FRIDAY, Sept. 3 (HealthDay News) -- It isn't personal success or failure that make up the best and worst moments of a person's life, but the events that occur within social relationships, new research has found.

FRIDAY, Sept. 3 (HealthDay News) -- Safety is the most important workplace issue, say 85 percent of American workers.

FRIDAY, Sept. 3 (HealthDay News) -- The risk of bowel surgery for children with Crohn's disease is much lower than reported in previous studies, according to new findings.

FRIDAY, Sept. 3 (HealthDay News) -- A new report casts doubt on the argument that marijuana is a "gateway drug" that plays a major role in leading people to try other illegal drugs.

FRIDAY, Sept. 3 (HealthDay News) -- Exposure to lead in early childhood may delay puberty in girls, a new study from the U.S. National Institute of Child Health and Human Development has found.

FRIDAY, Sept. 3 (HealthDay News) -- People with asthma who witness violence in their neighborhoods are at increased risk for asthma-related hospitalization and emergency department visits for asthma or any cause, finds a new study.

FRIDAY, Sept. 3 (HealthDay News) -- Breast cancer patients who've had a mastectomy are more likely to have breast reconstruction if a plastic surgeon is part of the treatment decision team, new research shows.

THURSDAY, Sept. 2 (HealthDay News) -- People with osteoporosis who take drugs such as Boniva (ibandronate), Fosamax (alendronate) or Actonel (risedronate) to strengthen their bones may be at an increased risk of esophageal cancer, British researchers report.

FRIDAY, Sept. 3 (HealthDay News) -- Pedestrians hit by a motor vehicle are much more likely to die if they're uninsured or a member of a racial minority than their counterparts who are white or insured, even if they sustain similar injuries, a new study shows.

FRIDAY, Sept. 3 (HealthDay News) -- Scientists report that they may have detected signs of autism in 6-month-old babies, but it's too early to know if the findings could lead to earlier diagnosis of the condition.

FRIDAY, Sept. 3 (HealthDay News) -- Oxygen therapy may be unnecessary for some terminally ill people who have trouble breathing, and could be replaced by treatment with ordinary room air, a new study suggests.

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

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

FRIDAY, Sept. 3 (HealthDay News) -- As Hurricane Earl roared up the U.S. east coast Friday, federal officials urged residents to take steps to protect themselves and their property.

FRIDAY, Sept. 3 (HealthDay News) -- Two former workers at one of the two Iowa egg farms implicated in the massive recall of salmonella-contaminated eggs said federal inspectors who worked at the two farms ignored complaints about conditions at one of the sites, the Associated Press reported Friday.

FRIDAY, Sept. 3 (HealthDay News) -- Feeding obese mice omega-3 fatty acids reduced inflammation that can lead to diabetes, a new study finds.