How can we make our marriages and other relationships stronger, longer-lasting and more fulfilling?

It’s a perfect question for Valentine’s Day and one that’s being investigated at Northwestern University’s Relationships and Motivation Lab, which digs into the science behind how people get along. Social psychologist Eli Finkel is the lab’s director. Morning Shift talks to him about what happens in the so-called RAMLAB and what he’s learned about the key ingredients to a healthy and productive partnership.

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Eli Finkel, author of the book The All-Or-Nothing Marriage: How The Best Marriages Work