Children and teens with higher blood levels of chemicals used in the production of non-stick cookware and waterproof fabrics appear more likely to have elevated total and LDL cholesterol levels, according to a report in the September issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.

Using ultrasound and a minimally-invasive procedure, radiologists can identify and treat patients who engage in a disturbing self-injury behavior known as self-embedding, according to a new study published in the online edition and October print issue of the journal Radiology.

The Johns Hopkins Children’s Center top pediatrician is urging a “rethink” of a new sickle cell screening program, calling it an enlightened but somewhat rushed step toward improving the health of young people who carry the sickle cell mutation.

In the spring, later sunset and extended daylight exposure delay bedtimes in teenagers, according to researchers at Rensselaer Polytechnic Institute’s Lighting Research Center (LRC).

A study in the Sept. 1 issue of the journal Sleep shows that teens who slept less than eight hours per weeknight ate higher proportions of fatty foods and snacks than adolescents who slept eight hours or more. The results suggest that short sleep duration may increase obesity risk by causing small changes in eating patterns that cumulatively alter energy balance, especially in girls.

Young adults who get fewer than eight hours of sleep per night have greater risks of psychological distress, a combination of high levels of depressive and anxious symptoms, according to a study in the Sept. 1 issue of the journal SLEEP.

Hispanic middle school students may be more likely to smoke, drink or use marijuana than their peers of other races and ethnicities, whereas Asian students seem to have the lowest risk, according to new research in the September issue of the Journal of Studies on Alcohol and Drugs.

Phenotypes are measurable and/or observable traits or behaviors. The heritability of an alcohol-related phenotype depends upon the social environment within which it is measured, such as urbanicity, marital status, or religiosity. A new study of the effects of religiosity on the genetic variance of problem alcohol use in males and females has found that religiosity can moderate genetic effects on problem alcohol use during adolescence but not during early adulthood.

By mining data from the 2000 Census, sociologist Michael Rosenfeld figured out the rates at which kids raised by gay and straight couples repeated a grade during elementary or middle school. He found that children of same-sex parents have essentially the same educational achievement as their peers growing up in heterosexual households.