Stress :: Adult offspring of parents with PTSD have lower cortisol levels

A small study suggests that adults whose parents are Holocaust survivors with post-traumatic stress disorder appear to have lower average levels of the stress hormone cortisol than the adult offspring of parents without PTSD, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

ADHD :: 9% of US children age 8 to 15 having ADHD

An estimated 8.7 percent of U.S. children age 8 to 15 meet diagnostic criteria for attention-deficit/hyperactivity disorder, but fewer than half receive treatment, according to a report in the September issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.

Genome :: Genome study shines light on genetic link to height

Using a new “genome-scanning” method, a team of scientists has identified the first robust link between genes and stature in humans. A single letter change in a gene called HMGA2 enables people who carry it to gain as much as a centimeter in height. The work provides insights into how genes hardwire growth in humans and suggests that finding additional height-related genes may be feasible.

Diet :: Teen diet and exercise survey gives cause for concern

A survey of 18,486 secondary school students at 322 schools across all Australian states except Western Australia has found that a significant proportion of students fall short of current, national dietary and physical activity recommendations for teenagers.

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