"improves cognition and helps people perform better on things like planning, scheduling, multitasking and working memory."

So if you're looking to boost memory, there's reason to challenge both your body and your mind.

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New York Public Radio.said former Port Authority of New York and New Jersey Chairman David Samson told him the governors discussed the idea in October 2013. The report would have attributed the lane closures to a traffic study, covering up the true reason for the closures: political retribution against the mayor of Fort Lee for failing to endorse Christie's 2013 re-election, Wildstein testified.

The report was never issued.

Instead, Bill Baroni testified before lawmakers in November 2013, two months after the lane closures, that they were part of a traffic study.

Baroni, who served as Christie's top appointed staff aide at the Port Authority, and Bridget Kelly, Christie's former deputy chief of staff, are on trial facing wire fraud and civil rights charges. They have pleaded not guilty.

Wildstein said the idea for the report