Untangling Nutrition

Here's a scientific problem: how can you learn about a situation where the data is unreliable, the system is really complicated, and the outcome is hard to measure? This is what researchers such as Prof Panagiotakos face when they study the health effects of nutrition. People are inclined to give untrustworthy answers about what they eat; the human body is an extremely complex physical and chemical system, even before we talk psychology. And if that's not enough, how do you measure health? Prof Panagiotakos is the Dean of School of Health Science & Education, at Harokopio University in Athens. In this interview with Rod, he describes the huge ATHLOS worldwide study into aging.