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Humans

For gamblers’ brains, almost counts

In an experiment mimicking slot machines, people’s brains reacted similarly to almost winning as to winning, possibly explaining why gambling can be addictive.

Health & Medicine

A better test for prostate cancer

Elevated urine concentrations of a compound called sarcosine in men with prostate cancer may signal an aggressive malignancy.

Psychology

Fatal fallout of financial failure

Using population data, researchers have linked a widespread Asian economic crisis in 1997 to an abrupt increase in suicide rates the following year in hard-hit places.

Climate

Winter birds shift north

More than 170 common North American species are wintering farther north than they did in the past.