Mind-wandering, often seen as daydreaming, allows the brain to incubate new approaches to familiar problems, serving "as a foundation for creative inspiration, " says the 2012 study in Psychological Science.

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As much fun as brain-scanning sounds, for now, Chopra ultimately wants people to learn the general practices of mind-body wellness.

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By contrast, a truly non-dualistic theory of mind has to state what is clearly obvious: your mind and your brain are identical.

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