Psychology & Psychiatry

Why men 'exhibit warrior tendencies'

A new study has looked into how our psychology concerning war and conflict may have been shaped by our evolutionary past.

HIV & AIDS

How HIV changes and reproduces

Years ago, identical twin baby boys received a blood transfusion tainted with HIV. Today, one twin is relatively healthy with a near-normal immune system, but his brother is five years behind on the growth chart and has developed ...

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