"Birds of a feather flock together" is a cliché for a reason when it comes to romantic relationships. Shared religious ...

It’s pretty normal for spouses to have personality traits and beliefs in common. After all, you’re more likely to be attracted to and want to be around somebody you can relate to. But research now ...

Opposites might not attract—at least when it comes to mental health. A new large-scale global study revealed that across cultures, people were more likely to marry a partner who shares the same ...

People with a psychiatric disorder are more likely to marry someone who has the same condition than to partner with someone who doesn’t, according to a massive study suggesting that the pattern ...

Stephen Fry has said the stability of marriage has helped him manage his bipolar disorder and he now feels much “calmer” and “happier” than when he was single.