John David Mann is a writer and the co-author of more than 30 books. Ana Gabriel Mann is a professional therapist, speaker and coach. Together, they've been married for more than 25 years, which also happens to be the subject of their latest work.

The Go-Giver Marriage is rooted in a framework of gratitude, kindness and self-disruption that John has been writing about for years. When Ana thought to apply this to relationships, it was a "light bulb" moment for both of them.

They join Whitney to discuss the 5 secrets that don't just apply to relationships in trouble, but can help an already good relationship (marriage or professional) become great.