Loneliness is silent, invisible and as deadly as a smoking habit. Maggie Fergusson seeks out those beside themselves at being by themselves

At a state penitentiary in Arizona, prisoners are learning how to tame wild horses. As Haley Cohen found, these are also lessons for life – and for corrections policy

Board games are back, thanks to the lessons their designers have learned from computer games. Tim Cross rolls the dice

Everyone has heard of Vesuvius but the caldera of Campi Flegrei is a far more dangerous volcano. Helen Gordon travels to Naples to understand the enormous threat it poses

When Harvey Weinstein’s abusive behaviour became public, he reportedly checked into rehab as a sex addict. But does sex addiction exist? As Emily Bobrow found, a growing number of therapists suspect the idea may do more harm than good

Migration, tribalism, drug-smuggling and nationalism – a continent’s problems reverberate through one small Greek town. Alexander Clapp travels to Aspropyrgos

America’s pleasures and paradoxes are on display on its porches. A.D. Miller takes it easy

Two hundred years after her death, Jane Austen’s books are remarkably relevant to women in Pakistan today, as Moni Mohsin found when she met the sub-continental Janeites

Globalisation has turned citizenship into a commodity. Matthew Valencia went shopping for a new passport and found bargains to be had

Growing numbers of teenagers, convinced they have been born in the wrong body, are switching gender. But young people change their minds about lots of things. What if one of them is their gender? Charlie McCann investigates