‘I might delete it’: Facebook’s problem with younger users

According to leaked research, the firm has found engagement among a key demographic is in decline

As a whistleblower prepares to speak out, what can be done to rein in Facebook?

Pressure grows on social network after US senators challenge Instagram over impact of app on children’s mental health

Constant craving: how digital media turned us all into dopamine addicts

According to addiction expert Dr Anna Lembke, our smartphones are making us dopamine junkies, with each swipe, like and tweet feeding our habit. So how do we beat our digital dependency, asks Jamie Waters

Bye bye BMI: Pinterest bans weight loss ads in first for major social networks

Advertisements promoting diets or slimming products and that idealise certain body types will be removed from the platform

Why am I so furious about teeth? They are deeply socially divisive

The gap between those who can or can’t afford a dentist is widening. There is a three-year wait for NHS appointments – while the market for whitening and tweakments booms, writes Guardian columnist Emma Beddington

The social biome: how to build nourishing friendships – and banish loneliness

All your daily interactions with others, big and small, make up your social biome, and the pandemic has severely damaged most of ours. Here’s how to reinvigorate it

‘A letter tells someone they still matter’: the sudden, surprising return of the pen pal

In the pandemic, many have rediscovered the sheer pleasure of writing to strangers, with new schemes spreading hope and connection around the world

Is that a unicorn? No, it’s a teenager taking a hike in the great outdoors…

The Ramblers charity, long known for its older demographic, is now recruiting the Insta-generation