{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T17:57:50Z","timestamp":1790877470527,"version":"4.1.0"},"reference-count":27,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T00:00:00Z","timestamp":1788393600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2026,9,3]],"date-time":"2026-09-03T00:00:00Z","timestamp":1788393600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["physoc.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Experimental Physiology"],"published-print":{"date-parts":[[2026,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Older adults are at heightened susceptibility to heat\u2010related cardiovascular complications when exposed to indoor overheating. While ceiling fans are recommended as an accessible cooling intervention, their effects on cardiac autonomic regulation remain unclear. In this randomized crossover study, 20 healthy older adults (median age 71 years, 12 female) completed two 8\u2010h exposures to simulated indoor overheating (31\u00b0C, 45% relative humidity) while bed\u2010resting with either no fan (control) or ceiling fan use (\u223c1.5\u00a0m\/s airflow). Core temperature and heart rate were monitored. Before exposure and between hours 6 and 7, participants underwent cardiac autonomic response testing including measures of heart rate variability (SDNN, RMSSD \u2013 indices of overall and parasympathetic\/vagal cardiac autonomic modulation, respectively) and supine\u2010to\u2010standing tests (30:15 ratio, systolic blood pressure response) as well as self\u2010reported symptoms of orthostatic intolerance. Ceiling fan use reduced peak core temperature (0.2\u00b0C [95% CI: 0.1\u20130.3];\n                    <jats:italic>P\u00a0<\/jats:italic>\n                    &lt;\u00a00.001), heart rate (\u22125 beats\/min [\u221210 to 0];\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.03), and attenuated heat\u2010induced reductions in RMSSD (4.7\u00a0ms [0.2\u20139.2];\n                    <jats:italic>P<\/jats:italic>\n                    \u00a0=\u00a00.04) compared to control. However, fan use did not influence SDNN, blood pressure during postural changes, cardiac response to standing, or symptoms of orthostatic intolerance. While ceiling fans provided modest reductions in core temperature and heart rate and partially preserved RMSSD, they offered limited overall cardiovascular and autonomic protection in older adults during prolonged heat exposure. These findings indicate that, despite some beneficial effects, ceiling fans provide limited cardiovascular autonomic protection, underscoring the need for comprehensive cooling strategies to safeguard older adults during indoor overheating.\n                  <\/jats:p>","DOI":"10.1113\/ep094066","type":"journal-article","created":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T06:58:27Z","timestamp":1788505107000},"page":"4328-4336","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effects of ceiling fan use on cardiovascular autonomic function during simulated indoor overheating in bed\u2010resting older adults"],"prefix":"10.1113","volume":"111","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9509-7682","authenticated-orcid":false,"given":"Fergus K.","family":"O'Connor","sequence":"first","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics, Faculty of Health Sciences, Montpetit Hall University of Ottawa  Ontario Canada"},{"name":"School of Health Sciences and Social Work Griffith University  Gold Coast Queensland Australia"},{"name":"Australian Centre for Precision Health and Technology Griffith University  Gold Coast Queensland Australia"},{"name":"Griffith Institute for Human and Environmental Resilience Griffith University  Gold Coast Queensland Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert D.","family":"Meade","sequence":"additional","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics, Faculty of Health Sciences, Montpetit Hall University of Ottawa  Ontario Canada"},{"name":"Department of Epidemiology T.H. Chan School of Public Health Harvard University  Boston Massachusetts USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristina\u2010Marie T.","family":"Janetos","sequence":"additional","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics, Faculty of Health Sciences, Montpetit Hall University of Ottawa  Ontario Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Norman R.","family":"Morris","sequence":"additional","affiliation":[{"name":"School of Health Sciences and Social Work Griffith University  Gold Coast Queensland Australia"},{"name":"Australian Centre for Precision Health and Technology Griffith University  Gold Coast Queensland Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8683-6973","authenticated-orcid":false,"given":"Glen P.","family":"Kenny","sequence":"additional","affiliation":[{"name":"Human and Environmental Physiology Research Unit, School of Human Kinetics, Faculty of Health Sciences, Montpetit Hall University of Ottawa  Ontario Canada"},{"name":"Clinical Epidemiology Program Ottawa Hospital Research Institute  Ottawa Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,3]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1113\/EP093856"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.5694\/mja2.52662"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMc2407812"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gloenvcha.2021.102299"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1097\/EE9.0000000000000189"},{"key":"e_1_2_10_7_1","volume-title":"ISO 9886:2004. 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