Aversion therapy is back in vogue — and this time it’s gone hi-tech. Caomhan Keane reports.

It might not be as extreme as the Ice Bucket Challenge, or as narcissistic as the No Make-up Selfie, but a new craze is raising thousands for charity.

Fear of seeming friendless or single prevents many people, especially women, from socialising or travelling by themselves, but going solo has its advantages, says Caroline Allen.