A history of head injuries may affect your sense of smell

Embargoed until: Publicly released: 2022-07-22 01:00

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Having a history of head injuries, especially severe ones, could cause a loss of the sense of smell, according to international researchers. The team studied self-reported data from over 5900 people, including 1666 people with a history of head injury, finding that participants with a history of more than 2 prior head injuries, and more severe head injuries, were more likely to report a loss of smell.

Media release

From: JAMA

About The Study: The findings of this study provide evidence supporting the association between head injury and a decreased sense of smell, particularly among individuals who experienced multiple prior head injuries and among individuals with more severe head injury.

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Journal/
conference: JAMA Otolaryngology–Head & Neck Surgery

Research:Paper

Organisation/s: University of Pennsylvania, USA

Funder: The ARIC Study is carried out as a collaborative study supported by National Heart, Lung, and Blood Institute (NHLBI) contracts (HHSN268201700001I, HHSN268201700002I, HHSN268201700003I, HHSN268201700004I, HHSN268201700005I). Neurocognitive data are collected by U01 2U01HL096812, 2U01HL096814, 2U01HL096899, 2U01HL096902, 2U01HL096917 from the NIH (NHLBI, National Institute of Neurological Disorders and Stroke, National Institute on Again, and National Institute on Deafness and Other Communication Disorders), and with previous brain magnetic resonance imaging examinations funded by R01-HL70825 from the NHLBI, and olfaction data collection was funded by the intramural research program of NIH, NIEHS (1ZIAES101986). Dr Schneider is supported by grant W81XWH-21-1-0590 from the Department of Defense. Dr Gottesman is supported by the National Institute of Neurological Disorders and Stroke Intramural Research Program. Dr Kamath is supported by grants from the NIH (R01AG064093 and R01NS108452). Dr Chen is supported by the NIEHS (R01ES029227), the Office of the Assistant Secretary of Defense for Health Affairs through the Parkinson’s Research Program (W81XWH-17-1-0536), the Parkinson’s Foundation (PF-IMP-1825), and the Michigan State University (GE100455).

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