A pair of Christmas booties. Using the word "booty" to mean "plunder" has become impractical, as other connotations have overtaken its original meaning, religious scholars say. AP hide caption

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During meditation, activity in the brain -- specifically the parietal lobe is decreased. This area of the brain is responsible for giving us a sense of our orientation in space and time. Dr. Andrew Newberg/andrewnewberg.com hide caption

toggle caption Dr. Andrew Newberg/andrewnewberg.com