Diesel fumes may harm sense of smell and thinking, study finds
NCT ID NCT07237958
First seen Nov 20, 2025 · Last updated Jun 16, 2026 · Updated 24 times
Summary
This study looked at how breathing diesel exhaust affects the nose's smell system and thinking abilities in 40 healthy, non-smoking adults. Participants were exposed to both diesel exhaust and clean air in a random order, and researchers took small nose tissue samples and tested smell and thinking skills. The goal was to find early signs of damage that might help explain how air pollution could raise the risk of dementia.
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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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Umeå Univeristy
Umeå, 90185, Sweden
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