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Siblings play formative, influential role as 'agents of socialization'

Research suggests that siblings play a formative role in shaping children's social and emotional development, with positive relationships between siblings linked to better outcomes for teenagers and adults. Parents can foster a supportive sibling relationship from an early age, regardless of the age difference or gender of the siblings.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNew Directions for Child and Adolescent Development·DateJan 15, 2010

Late motherhood boosts family lifespan

A new study finds that women who have babies in their 40s or 50s tend to live longer than other women, and their brothers also live longer, but not their wives. The study suggests that genes may play a significant role in prolonging lifespan and female fertility.

Stanford study finds transplant patient thrives 2 years after stopping immunosuppressive drugs

A Stanford study has successfully enabled a patient to thrive for two years after stopping immunosuppressive drugs. The innovative technique, developed by Samuel Strober and his team, involves adjusting the patient's immune system and infusing blood cells from a compatible donor, boosting levels of regulatory T cells to prevent rejection.

SourceStanford Medicine·JournalNew England Journal of Medicine·DateJan 23, 2008

Are civil unions a 600-year-old tradition?

A new study suggests that homosexual civil unions may have existed in France six centuries ago, challenging common assumptions about the history of same-sex relationships. The affrèrement, a medieval legal contract, provided a framework for non-nuclear households and shared characteristics with marriage contracts.

SourceUniversity of Chicago Press Journals·JournalThe Journal of Modern History·DateAug 23, 2007

Marie-Antoinette: The French revelation

Historian Simon Burrows disputes popular narrative that Queen's love life sparked revolution, citing evidence of scandalous pamphlets appearing after its start. The queen was unfairly maligned with lavish spending and plotting against the revolution, while sex allegations were baseless.

Men with family history of prostate cancer accurately predict higher risk, UMHS study finds

Researchers found that men with a family history of prostate cancer can accurately assess their lifetime risk and are more likely to use supplements to improve their health. The study also reveals that younger brothers of men with prostate cancer are nearly four times more likely to report using complementary or alternative medicine.

Natural selection in a nutshell

Researchers found that genes influence offspring growth, while quality of care from mothers is the primary factor. The study suggests that there are both "super moms" and "dud moms", with success determined by environmental conditions like food supply.

SourceUniversity of Alberta·JournalProceedings of the Royal Society of London·DateNov 12, 2003

Girls make twin brothers heavier (p 560)

A Belgian study of non-identical twins found that female twins prolong gestation by 0.4 weeks, resulting in a higher birthweight for their male co-twin. Birthweights of unlike-sex twins were also compared, with female twins having similar weights to same-sex twins but male twins weighing an average of 78g more.

SourceThe Lancet_DELETED·JournalThe Lancet·DateAug 16, 2001

Big brother has a lot to answer for

Researchers found that having an older brother predisposes individuals to random body asymmetries, such as hand and ear width variations. The study suggests a link between the immune system's response to male fetuses, with each successive male triggering a stronger reaction.

SourceNew Scientist·JournalThe New Scientist·DateDec 7, 1999