What do we really know about the effects of screen time on mental health?
Pete Etchells: A recent briefing from Public Health England warns that too much screen time is causing emotional problems in children. But is it that simple?
The 20 online talks that could change your life
Tom Meltzer: From TED talks to online seminars, video channels crammed with inspirational and thought-provoking lectures are educating us on everything from town planning and depression to body language, animal morality and dangers of sugar in just a few minutes. Here is our pick of the best
Why such outrage over porn filters? The idea seems perfectly reasonable to me
Deborah Orr: The angry arguments against David Cameron's opt-in filter proposals seem to imply that it's normal to want access to porn, and abnormal not to want access to porn
Royal baby: gloomy prognosis for babies born in July 2013
The next generation will face heatwaves, dementia and a reduced quality of life, according to predictions
How can I use laptops and tablets without suffering from physical pains?
Reid Railton wants tips on the ergonomically correct way to work to prevent strain, and 'iPad neck'
Trying to kick your apps addiction? Yes, there’s an app for that…
Pause iPhone app wants to 'help us reconnect with real life' by using the smartphone's Airplane Mode and gamification. By Stuart Dredge
Should I keep my smartphone and tablet out of my bedroom?
Luisa Dillner: Having smartphones on all the time, and using them for wake-up calls and that last email, is convenient. But is it good for sleep?
Bedtime blues: how to get children to sleep
One in five parents think their children are not sleeping well enough. Jon Henley meets Professor Paul Gringras, a sleep disorder specialist, who explains the importance of a good routine and how to achieve it
Peering at bright screens after dark could harm health, doctor claims
Light from TVs, computers, tablets and smartphones may disrupt sleep and raise risk of obesity, heart disease and depression
The food apps that could be bad for your children’s health
Sue Quinn: Kids enjoy food-based games – and tablets and smartphones offer a fun, interactive playing experience. But what happens when they are adverts for unhealthy processed food in disguise?