17. Libre Sense is a tool, like activity trackers and wrist watches that provide heart rate. Understanding real-time glucose levels can enable athletes to know the best time and foods to replenish their bodies during training and competition to help maintain peak performance in the moment as well as muscle recovery after. She was the first woman in the UK to wear Libre Sense in an Abbott World Marathon Major when she wore it to pace the elite women's race at the Virgin Money London Marathon last year. 18. Again, in her own words: 'Just seeing what fuel or food works better for me. So it's just changing a few things I've taken on board since I started using Libre Sense. Learning what my body does in response to fuels and gels and drinks on long runs will be invaluable. I can really see its value there going forward.' 19. This isn't just anecdotal experience. It's real-world data that's making the case for those who might be skeptical. 20. 'I'm the sort of athlete who, if I don't have the evidence, I'm not necessarily going to believe it. So for me to actually be able to see it on my phone and be like, 'OK, I can actually notice what's happening now.' I see how I feel internally and the data on the screen and combine the two. So that's been really good for me.' 21. She's learned about her body. She just knows herself better. The lows aren't so low and the sessions — seven days a week — have improved. Since her training started in 2021, 'I haven't had a bad session this year so far,' she said. 22. By the way, those sessions cover 'between 85 and 90 miles a week,' according to Nesbitt. And yes, she's heard your joke about her running more in a week than you drive. 23. The definitive destination of all those miles? The Olympics. 'Paris in 2024 is on my radar now. I'm doing every single thing I possibly can to get myself there.' 24. Everything possible includes training, racing (including next year's Commonwealth Games for Wales), proper nutrition and, yes, Libre Sense. 'I can look at my glucose levels — they didn't crash and they didn't spike — I see a steady state throughout the session. It's been really important.' 25. So, her goal is the Paris Games in 2024. And, as she says, the ultimate for any athlete is just to make an Olympics, however they can. But when she really lets herself dream, she's running the 10,000 meters at the Olympic Stadium. 'There's something about being inside a stadium at a major games — which is different from racing on the roads — and you get the ultimate experience of 25 laps of track, don't you? (The stadium) is the hub of the event, really isn't it.' And now you know why this story went to 25. Reference 1The biosensor is the world's first continuous glucose biosensor specifically designed for athletes; data on file, Abbott The Abbott Libre Sense Glucose Sport biosensor is not a medical device. It is not intended for use in diagnosis, treatment or management of disease. Libre Sense is available across eight European countries: Austria, France, Germany, Ireland, Italy, Luxembourg, Switzerland and the United Kingdom. The product is not available in the United States. Abbott is the title sponsor of the Abbott World Marathon Majors, a series of six of the largest and most renowned marathons in the world: Tokyo Marathon, Boston Marathon, Virgin Money London Marathon, BMW BERLIN-MARATHON, Bank of America Chicago Marathon and TCS New York City Marathon.