Matthew Walker

Jun. 05, 2015

What Is Sleep? A 'Superpower,' a 'Power Cleanse'

In his latest "Flame Challenge," Alan Alda asked people to answer the question: "What is sleep?" We talk with the winning respondents.

sleep, eric galicia, brandon aldinger, alan alda, matthew walker, sleeping, snoozing, napping, nap

Feb. 08, 2013

Science of Slumber: How Sleep Affects Your Memory

How much sleep does your brain need? Experts discuss the links between sleep, memory, and cognition.

memory, sleep, cognition, NIH

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Michael Pollan Talks Plants and Food

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Cephalopod Spectacular

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Mystery Box

Teaching Ancient Nautilus New Tricks

\tWith its heavy outer shell, weak vision, and primitive brain, the nautilus lacks much of the excitement of the more flashy and cunning cephalopods. Yet a series of experiments by evolutionary biologists Dr. Jennifer Basil and Robyn Crook involving fish juice, blue lights, and mazes dispels the notion that this ancient species is incapable of basic learning and throws into question the origins of cephalopods' intellectual prowess.

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