The Effects of Electric Fan Use Under Differing Resting Heat Index Conditions: A Clinical Trial

  title={The Effects of Electric Fan Use Under Differing Resting Heat Index Conditions: A Clinical Trial},
  author={Nathan B. Morris and Timothy English and Lily Hospers and Anthony Guy Capon and Ollie Jay},
  journal={Annals of Internal Medicine},
Background: The devastating effects of climate change on human health, particularly with respect to heat waves, are already evident (1). For example, heat wave events in Paris (2003) and Moscow (2010) were responsible for 4870 and 10860 deaths, respectively (2). As a result, delivery of evidence-based health advice by physicians and health care professionals to protect against heat-related illness has never been more important. Electric fans are simple, low-cost cooling devices. Yet, the U.S… 
Quantifying the impact of heat on human physical work capacity; part II: the observed interaction of air velocity with temperature, humidity, sweat rate, and clothing is not captured by most heat stress indices
A large empirical study with a physical model of human heat transfer is combined to determine the climates where increased air movement (with electric fans) provides effective body cooling, and provides compelling evidence that the impact of fans is strongly determined by air temperature and humidity.
An advanced empirical model for quantifying the impact of heat and climate change on human physical work capacity
The models presented are the first to include empirical data across the full range of warm and hot environments possible with future climate change across the world and can be used in climate projection models to predict economic and social consequences of climate change.
Sustainable solutions to mitigate occupational heat strain – an umbrella review of physiological effects and global health perspectives
A framework for integrating effectiveness, cost, feasibility (indoors and outdoor) and ecologic sustainability to provide occupational health and safety professionals with evidence-based guidelines is provided.
Classic and exertional heatstroke
This Primer describes heatstroke epidemiology, pathophysiology, diagnosis, preventive and therapeutic strategies, as well as long-term complications and areas for future research.
Keeping Older Individuals Cool in Hot and Moderately Humid Conditions: Wetted Clothing with and without an Electric Fan.
Wearing a water-soaked t-shirt without, but not with, electric fan use is an effective heat management strategy to mitigate thermal strain and lower sweat losses in older individuals exposed to hot and moderately-humid conditions.


Global risk of deadly heat
Climatic conditions that challenge human thermoregulatory capacity currently affect around a quarter of the world’s population annually. Such conditions are projected to increase in line with CO2
Climate Change and Health: A Position Paper of the American College of Physicians.
It is recommended that physicians and the broader health care community throughout the world engage in environmentally sustainable practices that reduce carbon emissions; support efforts to mitigate and adapt to the effects of climate change; and educate the public, their colleagues, their community, and lawmakers about the health risks posed by climate change.
Health and Public Policy Committee of the American College of Physicians. Climate change and health: a position paper of the American College of Physicians
  • Ann Intern Med
  • 2016
The heat index “equation
  • National Weather Service;
  • 1990