Extreme running may weaken immunity, study finds
NCT ID NCT06089174
First seen Feb 18, 2026 · Last updated May 20, 2026 · Updated 9 times
Summary
This study looked at whether running an ultratrail (a very long race) increases the risk of getting sick afterward. Researchers compared 471 runners with their companions who did not run. They tracked symptoms like colds, sore throats, and fever for three weeks after the race to see if the runners had more infections due to temporary immune system changes.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Locations
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CHU Réunion
Saint-Denis, 97400, Reunion
Conditions
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