Data from Moment, an activity-tracking app, shows that it is possible for light social-media consumers to be content, says The Economist.

Each week it asks its 1m users whether they are happy or sad with the amount of time they have spent on various platforms.

Nearly 63% of Instagram users report being miserable, a higher share than for any other social network.

They spend an average of nearly an hour per day on the app. The 37% who are happy spend on average just over half as long.

The happiness rate is much higher for FaceTime (91%), a video-calling app, and phone calls (84%).

When it comes to social networking, actual conversations are hard to beat.

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