About The Study: Electric fan use did not lower peak core temperature in older adults exposed to extreme indoor heat. Reductions in end-exposure core temperature and heart rate were observed, but they were small and of questionable clinical importance. Neither exceeded previous suggestions for clinical significance. Consistent with recent modeling, these data do not support fans as an efficacious standalone cooling intervention for older adults in hot indoor environments (>33-35 °C).
Corresponding Author: To contact the corresponding author, Glen P. Kenny, PhD, email gkenny@uottawa.ca .
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(doi:10.1001/jama.2024.19457)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
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