Why are we obsessed with wellness, but our health is getting worse? How have we messed up our relationship with food and exercise so badly? We are more obese, less active and more stressed than ever before and it's killing us.

Today, we're more likely to die from a lifestyle disease than any other cause, and many of these would be preventable if we took better care of our health. Enter a vast wellness industry that has emerged in recent years, making big money promoting 'healthy' lifestyles. Except the aim isn't to make your body work better: it's to make your body look better.