The UK ranks in the top five most overweight countries worldwide, with 66% of people either overweight. Of that number, 29% of girls aged 5 to 18 are overweight, and 8% obese. A Sports England TV ad is encouraging women who are uncomfortable with their figure to get into exercise.

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?

Women's fitness and wellness is an increasingly sexualised industry, characterised by an obsession with an enhanced physical appearance. But how do real women feel about the sexualisation of wellness? Could the allure of feeling sexy encourage more women to work out?

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?