In the interview below, Ann Mack, director of trendspotting at JWT, sits down with Brendan Byrnes to discuss the science and skill behind identifying big trends in their early stages. This sort of vision is absolutely vital for long-term investors, and is a cornerstone of our own resident superinvestor David Gardner's system for crushing markets. He seeks out game-changing companies before Wall Street is keen to their potential and helps investors profit as the companies soarI invite you to learn more about how David discovers his winners today with a personal tour of his flagship service: Supernova, just click here now for instant access.

Brendan Brynes: Let's talk about the whole health trend. We've seen this shift toward healthy products, organic foods, whole foods, companies like Hain Celestial, Annie's recently going public now. It seems like this has been a trend for a few years, at least. How is this evolving? How do you see this evolving into 2013?

Ann Mack: One of the trends that we spotlight in our report is this idea of health and happiness going hand in hand.

There's always been this pursuit of health. There's always been this pursuit of happiness, but increasingly research is showing that a healthier person is a happier person and, in turn, a happier person is a healthier person. As a result, you'll see marketers of health products try to extol the benefits that it has on your psyche, or on your happiness levels.