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How healthy is your marriage?

Author Tara Parker-Pope examines marital relationships in her new book, "For Better: The Science of A Good Marriage." She highlights the importance of how a couple met and a partner’s body language in her discussion with Meredith Vieira on TODAY. Related stories:How-we-met story may predict divorce

Author Tara Parker-Pope examines marital relationships in her new book, "For Better: The Science of A Good Marriage." She highlights the importance of how a couple met and a partner’s body language in her discussion with Meredith Vieira on TODAY. Related stories:How-we-met story may predict divorce