In the UK, 29% of girls are overweight. In the US, 36% of black girls, 37% of Hispanic girls and 29% of white girls are overweight or obese. But why are the numbers so high? How can girls be taught healthy attitudes, and encouraged to try sport from their first day at school?

Generation Z has grown up with a smartphone in one hand and an iPad in the other. So how come a craze for weaving plastic bands has taken playgrounds by storm? Where yo-yos and football stickers have gone before, loom bands are the kids’ craze of 2014. What exactly makes a Gen Z craze?

How do you get selfie-taking tweens into your beauty store? Make it about them. That’s the line MAC Cosmetics is taking with its new youth concept store in Orlando, which, after just a few months in operation, is now among its top five performing stores in North America.

Yoga products are worth $27 billion annually in the US. And while it's true that the number of people practising yoga – predominantly women – has increased by 20% in recent years, that doesn't explain why sales of yoga wear are up 87%. Are yoga pants set to become the next Levi's 901s?