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?

Whether they’re skateboarding through streets or surfing in the sky, nowhere is out of reach for extreme sports enthusiasts. One of the latest sports that’s soaring in popularity is Ultimate Frisbee. Will our appetite for extreme experiences make it a battleground for branded associations?

Boxing has already shaken up boutique fitness in the US, and it’s now arrived in London with KOBOX, which offers a non-contact version of the sport where people learn to throw punches and fight in a ring. Why are women swapping a slog on the treadmill for something a lot more powerful?

Raised on a diet of mystery, magic and suspense, yesterday’s Harry Potter fans have grown up to become today’s enthusiastic book buyers. And according to data from Nielsen, they’re driving a renaissance in sales of ‘grip lit’ – fast-paced page-turners and hard-boiled thrillers.