Are you a sleep texter? You’re not alone

In case you needed another reason not to keep your phone beside your bed, a quarter of students report this modern form of parasomnia

I’ve tried logging my exercise and diet – but are health apps really a good idea?

There’s an app for just about every aspect of wellbeing, from training to water consumption to menstruation. Do they help build good habits, or is there a darker side?

The 20 best gadgets of 2018

From electric bikes and fold-up drones to combat robots and digital skipping ropes… the year’s most desirable technology

Mattress firm tells customers beds do not record them sleeping

Privacy policy reference to collecting audio alarmed Sleep Number’s customers

Can helplines survive our growing fear of the phone call?

For decades, Childline and Samaritans have offered a friendly ear. But how does that work when so many of us would rather text, email or instant message?

Anne-Marie Imafidon: ‘My dream in life is to be a hermit’

The computer scientist and co-founder of STEMettes on turning vegan, going to church and why travelling is hard work

The lost art of concentration: being distracted in a digital world

We check our phones every 12 minutes, often just after waking up. Always-on behaviour is harmful to long-term mental health, and we need to learn to the hit the pause button

Back to books: the joy of slow reading

Taking time over a book cuts stress, improves comprehension and promotes empathy

Digital contraceptives and period trackers: the rise of femtech

With market predicted to be worth $50bn by 2025, is women’s health no longer being overlooked by tech?

The Guardian view on big data and insurance: knowing too much

Editorial: Insurance depends on the pooling of risk but big data may drain that pool