New research examines a possibly important factor in the quality of the adult relationships between siblings.
Read MoreIncreasingly, researchers are realizing that loneliness can be as dangerous as obesity or smoking.
Read MorePsychologists talk with Dr. Sue Johnson, author of "Hold Me Tight: Seven Conversations for a Lifetime of Love", about how to overcome relationship problems and what you should look for in a mate.
Read MoreDoctors Brian and Giuseppe speak with Dr. Sue Johnson, about the "science of love", and how to improve troubled relationships.
Read MoreMarry first or live together? Psychologists talk about the research.
Read MoreWhat teens want the most isn't money or clothes, but praise. Kitty Holman writes about new research.
Read MorePsychologists talk about trust in relationships and the impact of betrayal.
Read MoreMemories of the parent-child relationship may affect mental health, and the father-son relationship may be unique.
Read MoreSuggestions for parents who are concerned about their daughters' friendships.
Read MoreShannon Wills talks about navigating common parental challenges.
Read MoreIn a country where parents aren't the boss, how do teens handle disagreements?
Read MoreMothers may be spending more time driving to improve their kids' college applications.
Read MoreResearchers have contrasted couples that use "we" to describe themselves versus those that use "you and I".
Read MoreResearchers have looked at possible positive effects of teen romance.
Read MoreStudies show that people around the world believe they can tell when someone's lying. But is it true?
Read MoreResearch shows that social isolation spreads within communities, and it can cause physiological problems.
Read MoreSome research has found major differences in the relationships of couples who marry versus those who live together - What should couples do?
Read MoreWhile only about half a million people reported living together in 1970, over 4 million people report living together today.
Read MoreMen and women process information in different ways.
Read MoreChildhood witnesses of domestic violence may be exposed to other forms of abuse. What is the impact?
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