Not taking in fluids during a half marathon, especially in cool conditions, can lead to stomach upset. — Whalespan
Not taking in fluids during a half marathon, especially in cool conditions, can lead to stomach upset.
⚠ High risk
The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
◐PARTIALLYSUPPORTED
⚠
High-risk intervention — consult a physician before acting.Drug-drug interactions, dose-dependence, and screening contraindications apply.
“over half marathon we're not taking in any fluids if the weather's right the cool conditions and it was a nice cool perfect day to run in Houston that day flat course and so I wasn't taking in anything around mile 9 my stomach got a little bit upset”