Diesel fumes may harm sense of smell and thinking, study suggests
NCT ID NCT07237958
First seen Nov 20, 2025 · Last updated Apr 28, 2026 · Updated 16 times
Summary
This study looked at how breathing in diesel exhaust affects the nose's smell system and thinking abilities. Forty healthy, non-smoking adults were exposed to both diesel exhaust and clean air in a random order. Researchers took small tissue samples from the nose and tested sense of smell and mental processing speed to see if air pollution might play a role in developing 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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