Scientists have shown that exercise makes us healthier and leads to a longer life. But at an elite level, the situation can become more complex.

Such is the nature of greed: as soon as a means of making money is found, it's exploited and thus begins the decay of sporting integrity.

There is something quietly unsettling about watching a footballer pull on a gleaming shirt sponsored by a sovereign wealth fund

We say we want clean sport. We demand fairness, integrity, and a level playing field. Yet the way we actually consume sport tells a different story.