Heat stress causes loss of salt and water in sweat, causing haemoconcentration, which in turn causes increases in coronary and cerebral thrombosis.
Other deaths in heat waves are probably due to overload of already failing hearts, unable to meet the need for increased cutaneous blood flow in the heat.
Mexico’s Ministry of Health’s Report on Extreme Natural Temperatures showed that up to the last week of May, 61 people have died from high temperatures in Mexico.
According to the report, 54 of the deaths were due to heat stroke, while the remaining seven were due to dehydration.
Also, 16 deaths occurred in Veracruz, 11 in Tabasco, nine in San Luis Potosí and Tamaulipas respectively, four in Hidalgo, Oaxaca and Nuevo León, and one each in Chiapas, Campeche, Guanajuato and Sonora.
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