Running 10 hours a week for more than 120 km (75 miles) is extreme exercise, to be sure.
![Elite Runners Live Years Longer Than The Average Person, Scientists Find](https://img.easybranches.com/uploads/news/2024/05/14564236.jpg)
Running 10 hours a week for more than 120 km (75 miles) is extreme exercise, to be sure. Yet far from pushing the body beyond its limits, a new study suggests some professional athletes are adding ye… [+3427 chars]