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The Surprising Reason Runners Get Lightheaded When They Stand Up - Outside Magazine

New research suggests it’s actually not about your heart.

By:Alex Hutchinson
Source:Outside
Published:
The Surprising Reason Runners Get Lightheaded When They Stand Up - Outside Magazine
Published December 15, 2025 09:13AM Whoa, headrush! Over the years, Ive gotten very familiar with that sensation: a sudden lightheadedness if I get up suddenly after, say, chilling on the sofa. Its … [+5771 chars]

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