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Hidden Switches in the Mind

Experience may contribute to mental illness in a surprising way: by causing "epigenetic" changes—ones that turn genes on or off without altering the genes themselves

By Eric J. Nestler

The Forever Health Monitor

Your smartphone can monitor your vital signs in real time, alerting you to the first sign of trouble

By Elizabeth Svoboda

Computers that Don't Freeze Up

People have to manage their own time. Why can't our machines do the same? New software will keep them humming

By Francie Diep

Currency without Borders

The world's first digital currency cuts out the middleman and keeps users anonymous

By Morgen Peck

Microbe Miners

Bacteria extract metals and clean up the mess afterward

By Sarah Fecht


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December 2011

Feeling Dead Inside?

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