But other research has shown mixed results. (And there are plenty of gender prediction old wives' tales that have no science at all to back them up.) “These studies are generally small and show ...

The post A scientific guide to zodiac signs, history, and flaws appeared first on Astronomy Magazine.

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How do you know if someone's smart? Without administering an impromptu IQ test, there are certain clues you can use to gauge a person's relative intelligence. We combed through decades of ...

Oldest siblings are usually smarter, but it's not because of genetics, one study found. Norwegian epidemiologists used military records to examine the birth order, health status, and IQ scores of ...