In the second installment of our year-long series, Under the Radar dives into the world of polyamory and ethical nonmonogamy ...

Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. For many of us, our mental picture of romantic love is a couple. After all, a firmly ...

This third and final blog in a series explores what makes for a resilient traidic relationship. The first blog explained why threesomes are the most common form of consensually monogamous group ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Polyamory isn't for everyone, but for some people, it can be the ...

Polyamory is a type of consensual nonmonogamy where people have more than one partner at a time. Unlike cheating, polyamory is based on open communication, trust, and mutual agreement among partners.

According to data from YouGov, 1% of the UK population are currently in polyamorous relationships and 8% would be open to being part of one. For clarity, this means that 680 thousand people are in ...

Here's what happened when I let my boyfriend talk me into a polyamorous relationship and found myself in love with two men at once. I’ve never been particularly traditional, especially when it comes ...

WATCH: Reporter Dana Gerber explains the challenges and solutions. When people find out that Scott Legault and Petra Jackl, who are married, also live with Legault’s girlfriend, the questions the ...