I'm confident of what I have to achieve in the buildup to London 2012.

Plenty of people who are 38 have run really well in the marathon.

We, as athletes, have our suspicions about who's cheating, but I'm not convinced that the testing has yet caught up with what people are using or what they are using to disguise it.

I prefer just a women's race. It's a totally different game mentally.

In my Olympic history I don't think I have achieved my potential as an athlete. That's what I want when I look back at my career. I want to be able to say I gave it my best shot.

I don't like going away from my children.

You can't become a winner overnight, or even in a couple of years-it takes time... You will lose races and you will have to accept that, learn from it and believe that you'll win the next one, knowing that you'll probably lose that as well. All the time you have to keep believing that one day you will win.