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Science News for August 17, 2007


Call for network to monitor Southern Ocean current

A call has been made for a Southern Hemisphere network of deep ocean moorings to monitor changes in the Southern Ocean circulation, which could influence global climate. The North Atlantic moored network provides measurements of the Gulf Stream, a significant feature in moderating European and North American climate.

SourceCSIRO Australia·JournalScience·DateAug 17, 2007

Loneliness is bad for your health

A study by Louise Hawkley and John Cacioppo found that loneliness accumulates over time and contributes to increased stress, chronic inflammation, and poorer sleep quality in older adults. The researchers also discovered that lonely individuals exhibit a heightened state of arousal and are less likely to seek help when stressed.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateAug 17, 2007

PFOS and PFOA exposure associated with lower birth weight and size

Exposure to PFOS and PFOA in utero is statistically associated with lower head circumference and body weight at birth, according to a Johns Hopkins Bloomberg School of Public Health analysis of nearly 300 umbilical cord blood samples. The study found no associations between these compounds and length or gestational age.

SourceJohns Hopkins Bloomberg School of Public Health·JournalEnvironmental Health Perspectives·DateAug 17, 2007