"Heat, cold, turbulence, hail, flooding, lightning strikes all kill people."
So do earthquakes, volcanic eruptions, big rocks from space, wildfires, famine, and drought.
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"You religious Marxists all seem to believe God installed a thermostat somewhere for your comfort"
Rat is an occasionally religious Jew, but he believes that there is a thermostat, something he learned about in his very first physiology class.
Human Physiology in Extreme Heat and Cold (clinmedjournals.org)
Thermoregulatory physiology main goal is to keep a Tc within a degree or two of 37 ?...
The two most paradigmatic life-menacing states, temperature related, are hyperthermia and hypothermia.
Hyperthermia definition may vary. Some authors define it as an elevated core temperature of 40.5 ? or more because of a failure of thermoregulation due to an increase in heat production that overwhelms the heat dissipating mechanisms [ 1, 10]. Other authors, such as Bouchama & Knochel [ 8], define hyperthermia as "a rise in body temperature above the hypothalamic set point when heat-dissipating mechanisms are impaired (by drugs or disease) or overwhelmed by external (environmental or induced) or internal (metabolic) heat" [ 8]. Although both definitions can be considered complementary, we will be using the former definition since it can be clinically demonstrated. According to Cheshire, it is clinically manifested by "sweating, flushing, tachycardia, fatigue, light-headedness, headache, paraesthesia, muscle cramps, oliguria, nausea, agitation, hypotension, syncope, confusion, delirium, seizures, and finally, coma" [ 1].
Heat exhaustion and its progression, heatstroke, along with dehydration and electrolyte disorders; are common during heat waves and are known to considerably increase hospital admissions [ 11].
The recent elevations in climate temperature are becoming a public health issue due to the strong association between temperature rise and mortality. Climate change is one of the main causes of the increasing temperatures contributing to an increase in mortality, especially in frail elderly and infants, where the first week of life is the most critical window of vulnerability [ 12, 13].
Hypothermia, which is a disorder where body core temperature decreases below 35 ?, may be caused by a failure in the production of heat and/or due to an excess in the loss of it [ 14]. The clinical presentation of hypothermia depends on the intensity and duration of the signs and symptoms of possible associated pathologies. Cheshire states that "it may present with shivering, respiratory depression, cardiac dysrhythmias, impaired mental function, mydriasis, hypotension, and muscle dysfunction, which can progress to cardiac arrest or coma" [ 1]. Related diseases also influence the prognosis. When hypothermia occurs in isolation, mortality is 6-10%; however, when it is associated with other pathologies, mortality can reach up to 75% [ 15].
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Humans can't endure temperatures and humidities as high ...
Penn State
Mar 1, 2022 — It has been widely believed that a 35°C wet-bulb temperature (equal to 95°F at 100% humidity or 115°F at 50% humidity) was the maximum a human ... |
