Health

Bad reaction from a new tattoo? Here's what to do

(HealthDay)—The biggest worry a person usually has when they're getting a tattoo is how it will look. But sometimes, getting inked can lead to something worse than bad body art, an expert warns.

Neuroscience

First serotonin neurons made from human stem cells

Su-Chun Zhang, a pioneer in developing neurons from stem cells at the University of Wisconsin-Madison, has created a specialized nerve cell that makes serotonin, a signaling chemical with a broad role in the brain.

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