I have achieved a lot and I'm grateful for that - I'm just a bit greedy because I want to add the Olympics. It's once every four years - everyone wants it and very few people get it.

I actually got a nice surprise about being a mother because I expected it to be harder and to have to make more adaptations.

There's always going to be somebody who takes a dislike to you and you can't waste time worrying about it.

As an athlete, there are advantages being with a team and getting regular physio...

To represent your country at a home Olympics is something special and I'm over the moon to be selected for Team GB. I was pleased to get the qualifying time in Berlin earlier this year and my sole focus is getting in the right shape for London.

It's important that athletes can compete on a level playing field. And youngsters coming into the sport can know that if they are working hard and training hard, they'll see a true reflection of where they stand and what they can achieve worldwide and not be swayed by people who are cheating.

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