brain

The above image is a DTI

The smarter the person, the faster information zips around the brain, a UCLA study finds. And this ability to think quickly apparently is inherited.

The study, published in the Journal of Neuroscience, looked at the brains and intelligence of 92 people. All the participants took standard IQ tests. Then the researchers studied their brains using a technique called diffusion tensor imaging, or DTI.

Thanks to a rare bacteria that grows only on rocks in the Swiss Alps, researchers at The Univ. of Texas at Austin and the Pasteur Institute have been the first to identify how alcohol might affect key brain proteins.