If you do it, flaunt it. Sharing your exercise routine is no bad thing

Rupert Myers: Runners are worryingly keen to upload their penis-shaped jogging routes – but at least they’re less tedious than snaps of babies or posh food

Loneliness: a silent plague that is hurting young people most

For young Britons, loneliness is an epidemic – and they are even more likely to fall victim to its insidious dangers than the elderly. Natalie Gil reports

Facebook buys fitness-tracking app Moves

The app will keep running (and walking) as a standalone service for now, but marks a significant move for the social network into health data. By Stuart Dredge and Alex Hern

Privacy can be a burden – sharing more online might help

Margaret Corvid: Many of our private concerns are matters of public import – a shared empathy could help us all better deal with our troubles

Can instant messaging damage your health? Doctor warns of ‘WhatsAppitis’

Echoing the 1990s 'Nintendinitis' scare, repetitive strain injury to smartphone user's hands leads doctor to report new condition

Top 10 tweeters on sexuality and development

Many on our list are activists on the issue of gay rights, while others look but we are also interested in the tweeters discussing the wider spectrum of sexuality.

12 New Year’s resolutions that should be abandoned

Vowing to be a better person in 2014 is a waste of time, says Stuart Heritage. Just embrace the lazy underachiever you really are

Britain on the couch: UK therapists share our biggest worries

From porn addiction to body dysmorphia, Britons no longer find therapy taboo. But what do their problems tell us about the nation's mental state? Therapists open up to Louise Chunn

Facebook has got it spectacularly wrong on beheading videos

Jonathan Freedland: First thoughts: Facebook is making an editorial judgment in allowing head-chopping yet banning breastfeeding. And it is a very bad one

Lisa Lynch obituary

Writer who recounted her experience of cancer with engaging candour