Demography

Neuroscience

Family size may influence cognitive functioning in later life

A new study at Columbia University Mailman School of Public Health, and the Robert Butler Columbia Aging Center and Université Paris-Dauphine—PSL, found that having three or more versus two children has a negative effect ...

Genetics

Ancestry tests affect race self-identification

A genetic ancestry test (GAT) can not only unearth deep family secrets, it also can change how people self-identify their race on surveys. A new study by Stanford sociologists delves into how such changes could affect data ...

Other

Americans are increasingly experiencing chronic pain

Americans are in chronic pain, and a comprehensive new study exploring trends in this major public health concern reveals that what has been a long-standing and under-acknowledged problem is getting substantially worse.

Obstetrics & gynaecology

Shift in birth timing tied to decline in birth weights

(HealthDay)—If rates of obstetric practices had not changed between 1990 and 2013 to include more cesarean deliveries and inductions, then the average U.S. birth weight likely would have increased over this time, according ...

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