Ultramarathons could be bad for your blood

15:34 - 18 Feb 2026

www.newscientist.com

Running 170 kilometres over mountainous terrain caused people's red blood cells to accumulate more age-related damage than those of less ambitious athletes

https://www.newscientist.com/article/2516226-ultramarathons-could-be-bad-for-your-blood/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home

Article info:

Full Article URL: https://www.newscientist.com/article/2516226-ultramarathons-could-be-bad-for-your-blood/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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Source: https://www.newscientist.com/feed/home/?cmpid=RSS|NSNS-Home
Newscientist.com: https://www.newscientist.com
Publication date: 2026-02-18 15:34:08
Last retrieval: 2026-02-18 20:46:13.372449