I don't have any kids of my own, quite by choice. There are two reasons for that. One, I had a sense of obligation for what my life would be and a vision of how to get that accomplished and it didn't include children. It's not that I don't like them, it's just that if you have them, they deserve 100 per cent of your attention.

When I go to the Boston Marathon now, I have wet shoulders—women fall into my arms crying. They're weeping for joy because running has changed their lives. They feel they can do anything.

I married the right guy later in life. Roger Robinson is just so wonderful but I was 40 and by that time he had been married and had his family. I realized how dangerous children could truly be. So I feel maternal when I see those women run.

All you need is the courage to believe in yourself and put one foot in front of the other.

When I got the women's marathon into the Olympics and we had races all over the world I thought, 'That's great, now we're heading towards total equality.' Then you see that there are women who are still not allowed to drive, get an education, or travel unless they have a male companion or can't carry their passport. There are those who are mired with incredible poverty in North Africa, the mid-east, South East Asia and there's a ridiculous amount of human trafficking.

What I've done in this older part of my life is I started foundation called 261 Fearless, named after my old ,1967 Boston Marathon, bib number.I thought we could create training and a communicative, non-judgmental platform, in a movement to let them know they're not alone. Then fearless women can reach out to help women who are fearful and take that first step using the vehicle of running because it's transformational. It works for every woman every time.

1967 race in Boston changed not just my life, but millions of women's lives. There are also things that, when you get older, resonate more.