People say they don't want to be sad, but their online habits disagree. Content that channels sorrow for views has become a ubiquitous part of online culture. Why does it work?

Grief has long thought to be a human trait, but other animals – from killer whales to crows – also appear to suffer loss when a companion dies.

We live in a bustling, crowded world, yet loneliness appears to be on the rise. Why are so many of us feeling isolated and what can we do about it?

Friendships can bring some surprising benefits to our health. Here's how you can make new friends and strengthen the ones you've got already.

Why not try these science-backed tips to get more happiness in your life?

From red wine headaches to mixing drinks, here's what to know about hangovers ahead of New Year's Day.

Here are some of the words and phrases the BBC encountered this year that helped to unravel the changes taking place in world around us.

The festive season can often be overwhelming for those with conditions including ADHD and autism.