Once our critter brain has equated a particular phenomenon with safety or with survival, it will continue to carry out that program.

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In the three earlier films, Matt Damon plays Jason Bourne, star of a top-secret CIA program that trains super-soldiers to carry out assassinations.

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The development program that a company would have to carry out to convince the FDA and other regulatory agencies that a drug truly had anti-aging properties would be long, difficult and expensive.

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