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I guess it's too late to change my mind. Aşkın Dursun KAMBEROĞLU/Getty Images hide caption

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Aşkın Dursun KAMBEROĞLU/Getty Images

Why Your Brain Has Trouble Bailing Out Of A Bad Plan

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A chimpanzee skull, at left, and a human skull. Scientists are probing why our brains evolved so differently despite many similarities. D. Roberts/Science Photo Library/Getty Images hide caption

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D. Roberts/Science Photo Library/Getty Images

Rats and people may rely on "metamemory" in a variety of different ways, scientists say. For a rat, it's likely about knowing whether you remember that predator in the distance; for people, knowing what we don't know helps us navigate social interactions. fotografixx/Getty Images/iStockphoto hide caption

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fotografixx/Getty Images/iStockphoto

From Rats To Humans, A Brain Knows When It Can't Remember

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Angie Wang for NPR

The Roots Of Consciousness: We're Of 2 Minds

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NIH Director Francis Collins and Renée Fleming, who is Artistic Advisor at Large for the Kennedy Center in Washington, D.C., sing a duet. Shelby Knowles/NPR hide caption

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Shelby Knowles/NPR

The Soprano And The Scientist: A Conversation About Music And Medicine

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Sometime between grade school and grad school, the brain's information highways get remapped in a way that dramatically boosts self-control. Thomas Trutschel/Photothek via Getty Images hide caption

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Thomas Trutschel/Photothek via Getty Images

As Brains Mature, More Robust Information Networks Boost Self-Control

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Researchers found that a protein in human umbilical cord blood plasma improved learning and memory in older mice, but there's no indication it would work in people. Mike Kemp/Rubberball/Getty Images hide caption

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Human Umbilical Cord Blood Helps Aging Mice Remember, Study Finds

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A 'Hot Zone' In The Brain May Reveal When, And Even What, We Dream

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State and federal policies now limit the use of lead in gasoline, paint and plumbing, but children can still ingest the metal through contaminated soil. The effects of even fairly small amounts can be long-lasting, the evidence suggests. Christin Lola/Getty Images/iStockphoto hide caption

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Christin Lola/Getty Images/iStockphoto

Childhood Exposure To Lead Can Blunt IQ For Decades, Study Suggests

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