The poor tend to value social connections, psychologists say. But as people become wealthy, they need one another less and — according to some scientists — make fewer connections.
Pregnant doctors are less likely than other women to deliver their babies via C-section, recent research suggests. Economists say that may be because the physician patients feel more empowered to question the obstetrician.
If someone like Lang Lang were starting out now, the energetic concert pianist could nail every piano competition without the judges ever hearing a note, according to a new study.
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Girls are more likely to take high school physics if they see women in their communities working in science, technology, engineering and math, a new study finds.