From the BBC news to the Marathon des Sables, this is an inspiring journey into running from one of the UK's best-known broadcasters.

The marathon bug had bitten. I discovered I loved the training, the discipline and the structure that it brought to my life as well as the realisation that despite being in my early 40s, I was getting faster. My confidence grew too. At a time when I felt unsure of my footing at work, running was starting to make me feel steadier on my feet and in my mind. Could I go faster?

After seeing a friend run the London Marathon, Sophie decided to give it a go. Collapsing two miles from the finish line, her first attempt was a disaster, but she picked herself up and kept going on a path that would take her to races all over the world across the Alps and even the Sahara Desert for the famous 150-mile Marathon des Sables.

Sophie has now run all six World Marathon Majors, completed 15 marathons and three ultra-marathons, and run the entire length of the Thames Path, from source to sea. Along the way, she discovered new inner confidence, strength, community and the power of friendships which helped her through some tough challenges from losing loved ones and fighting injuries to interviewing the Prime Minister.

Running on Air will show you that you can do more than you ever believed just by putting one foot in front of the other: running can give you a purpose, a goal, but most of all, a breath of fresh air.