Keeping long-term relationships strong

You might call it the "thirty year itch" – couples deciding to call it quits after having been married for decades. Some experts say this is a growing trend – most recently, Al and Tipper Gore announce their decision to divorce. WHYY's Behavioral Health reporter Maiken Scott spoke with psychologist Dr. Dan Gottlieb about what breaks up long-term marriages – and what keeps them together:

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