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Comment
. 2017 Feb 16;4(2):104-106.
doi: 10.1080/23328940.2017.1295833. eCollection 2017.

Electric fan use during heat waves: Turn off for the elderly?

Daniel Gagnon  1   2 , Craig G Crandall  3
Affiliations
Comment

Electric fan use during heat waves: Turn off for the elderly?

Daniel Gagnon et al. Temperature (Austin). .
No abstract available

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Figures

Figure 1.
Figure 1.
Predicted environmental limits at which fan use is either beneficial (white area), or of marginal benefit (light gray area), or detrimental (dark gray area) for young adults (left panel) and the elderly (right panel). The green dashed lines represent the baseline environmental conditions of our protocol (42°C, 30% humidity). The red dashed lines represent the environmental conditions at which an increase in heart rate (HR; 42°C, ∼55% humidity) and internal body temperature (Tcore; 42°C, ∼65% humidity) occurred during a step-wise increase in relative humidity. The circled numbers indicate the peak outdoor conditions for 10 of the most severe heat waves in the past 20 years: (1) Washington, DC, 2012 (day); (2) Paris, France, 2003 (day); (3) Newark, NJ, 2011; (4) Chicago, IL, 1995; (5) New York, NY, 2006; (6) Chicago, IL, 1999 (day); (7) Washington, DC, 2012 (night); (8) Chicago, IL, 1999 (night); (10) Paris, France, 2003 (night). Modified with permission from Jay et al.
See this image and copyright information in PMC

Comment on

  • Electric fan use in heat waves: Turn on or turn off?
    Ravanelli NM, Jay O. Ravanelli NM, et al. Temperature (Austin). 2016 Jul 19;3(3):358-360. doi: 10.1080/23328940.2016.1211073. eCollection 2016. Temperature (Austin). 2016. PMID: 28349077 Free PMC article. No abstract available.

References

    1. Ravanelli NM, Jay O. Electric fan use in heat waves: Turn on or turn off? Temperature. 2016;3(3):358-360. doi:10.1080/23328940.2016.1211073 - DOI - PMC - PubMed
    1. Ravanelli NM, Hodder SG, Havenith G, Jay O. Heart rate and body temperature responses to extreme heat and humidity with and without electric fans. JAMA 2015;313(7):724-725. PMID:25688786; doi:10.1001/jama.2015.153. - DOI - PubMed
    1. Kenney WL, Craighead DH, Alexander LM. Heat waves, aging, and human cardiovascular health. Med Sci Sports Exerc. 2014;46(10):1891-1899. PMID:24598696; doi:10.1249/MSS.0000000000000325. - DOI - PMC - PubMed
    1. Gagnon D, Romero SA, Cramer MN, Jay O, Crandall CG. Cardiac and thermal strain of elderly adults exposed to extreme heat and humidity with and without electric fan use. JAMA 2016;316(9):989-991. PMID:27599335; doi:10.1001/jama.2016.10550. - DOI - PMC - PubMed
    1. Jay O, Cramer MN, Ravanelli NM, Hodder SG. Should electric fans be used during a heat wave? Appl Ergon. 2015;46(Pt A):137-143. PMID:25134988; doi:10.1016/j.apergo.2014.07.013. - DOI - PubMed

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