What makes this story so remarkable is that throughout my early childhood I had ongoing learning difficulties, particularly in mathematics. I struggled to learn the multiplication table, and no matter how hard I tried, I simply couldn't remember 6 times 7 or 7 times 8.

While neurological studies have tried to identify components responsible for fear and greed, the impact on finance is less clear.

If you rank the top 50 one-day moves in the S&P 500, a fair number of those happened within the last five or 10 years. That tells you that we're in a different, riskier market now.

More and more investors may be coming into markets everywhere but that doesn't mean that the markets are really getting more and more efficient, even in the United States. It does mean that there is more access for savvy investors who watch the money flows.

Politics gets me out of bed in the morning It's what really interests me. I'm a competitor, but I also feel like I'm contributing, whether it's working on health-care policy in the White House or out here in Chicago.

While I've got my health and fitness, I'm available... except for panto, of course. Too bloody much like hard work.

Mental health is such a complex thing and so difficult to diagnose. What is a mental problem? Who does have mental problems? What's the difference between mental problems and depression and sadness?

As top players, we earn a lot of money, but sometimes we pay a hefty price with our health. I would give away all the money to be healthy again, to be able to do my job. To do what I love: to play football.