From Canada: Use of Fan, Skin Wetting Reduces Cardiac Strain in Hot, Humid Conditions
The benefits of fan use, skin wetting, or both on cardiac strain vary with temperature and humidity, according to a study published in the Nov. 7 issue of the New England Journal of Medicine.
Georgia K. Chaseling, Ph.D., from the Montreal Heart Institute, and colleagues examined the effects of fan use, skin wetting, or both on heat-induced cardiac strain in older adults with (27 adults) and without (31 adults) coronary artery disease during exposure to high temperatures with high or low relative humidity. Participants sat for three hours in an environment with a mean temperature of 38.0 ± 0.1 degrees Celsius and a mean relative humidity of 60 ± 1 percent or a mean temperature of 45.0 ± 0.1 degrees Celsius and a mean relative humidity of 15 ± 1 percent.
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