Playing, and even watching, sports improves brain function

Being an athlete or merely a fan improves language skills when it comes to discussing their sport because parts of the brain usually involved in playing sports are instead used to understand sport language, new research at the University of Chicago shows.

Global warming greatest in past decade

Researchers confirm that surface temperatures in the Northern Hemisphere were warmer over the last 10 years than any time during the last 1300 years, and, if the climate scientists include the somewhat controversial data derived from tree-ring records, the warming is anomalous for at least 1700 years.

Higher anaphylaxis rates after HPV vaccination: CMAJ study

OTTAWA, ONTARIO, CANADA – The estimated rate of anaphylaxis in young women after human papillomavirus (HPV) vaccination was significantly higher – 5 to 20 fold – than that identified in comparable school-based vaccination programs, according to a study published in CMAJ http://www.cmaj.ca/press/179_6_525.pdf. However, the overall rates of anaphylaxis were low with no associated serious lasting effects.

Children of older fathers more likely to have bipolar disorder

Older age among fathers may be associated with an increased risk for bipolar disorder in their offspring, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

PET scans help identify mechanism underlying seasonal mood changes

Brain scans taken at different times of year suggest that the actions of the serotonin transporter—involved in regulating the mood-altering neurotransmitter serotonin—vary by season, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals. These fluctuations may potentially explain seasonal affective disorder and related mood changes.

Study examines relationship between low birth weight and psychiatric problems in children

Low-birth-weight children appear to be at higher risk for psychiatric disturbances from childhood through high school than normal-birth-weight children, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals. In addition, low-birth-weight children from urban communities may be more likely to have attention problems than suburban low-birth-weight children.

Family therapy helps relieve depression symptoms in bipolar teens

Family-focused therapy, when combined with medication, appears effective in stabilizing symptoms of depression among teens with bipolar disorder, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals.

Children's calorie expenditure, heart rate increase during active video games

Children burn more than four times as many calories per minute playing an active video game than playing a seated game, and their heart rate is also significantly higher with the active game, according to a report in the September issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.

Depression common among Rwandan youth who head households

More than half of orphaned youth age 12 to 24 who head households in rural Rwanda meet criteria for depression, according to a report in the August issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals.

Hospitals provide formula sample packs while medical organizations encourage breastfeeding

A majority of U.S. hospitals on the East coast distribute formula sample packs to new mothers, contrary to recommendations from most major medical organizations concerned about the potential for distributing these packs to reduce breastfeeding rates, according to a report in the September issue of Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals. However, the practice is changing significantly.