Personalised discounting already requires people to give up a little personal data and privacy. US pharmacy Walgreens is taking this further, giving shoppers wearable devices that track healthy habits and reward them with store credit if they opt for quinoa and kale over cronuts.

Health apps and trackers sell themselves as the gateway to a more wholesome and healthy life. But can they actually be dangerous? A new report, titled ‘Can Healthy People Benefit from Health Apps', raises questions about how apps are creating unnecessary anxiety in otherwise healthy people.

Why is personal care changing its tone? How is selfie culture influencing which beauty products women use? Why are people ditching the diet? And how are we detoxing our homes and bodies?

A new campaign from Nike converts the distances participants run into tangible rewards. By introducing an element of gaming, the brand is encouraging greater loyalty and creating an Alternative Currency that revolves around sweat, not money.