Runners are feeling the effects of rising temperatures, which is prompting marathons to consider adjustments. A seasoned runner, who has completed numerous marathons, struggles with temperatures above 60 degrees Fahrenheit. This is a common issue for runners, as their bodies have difficulty cooling down during intense physical activity.

The heat exacerbates this problem, making it even harder for runners to cool down. Further details on this issue are available from the source. Information on how marathons plan to address this concern is not provided in the available information, but the source may have additional details.