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Origins of heat and cold adaptations can be explained by climatic adaptation. [16] [17] Ambient air temperature affects how much energy investment the human body must make. The temperature that requires the least amount of energy investment is 21 °C (70 °F). [5] [disputed – discuss] The body controls its temperature through the hypothalamus.
There is a rapid cold hardening capacity found within certain insects that suggests not all insects can survive a long period of overwintering. Non- diapausing insects can sustain brief temperature shocks but often have a limit to what they can handle before the body can no longer produce enough cryoprotective components.
Some nutrients can be stored – the fat-soluble vitamins – while others are required more or less continuously. Poor health can be caused by a lack of required nutrients, or for some vitamins and minerals, too much of a required nutrient. Essential nutrients cannot be synthesized by the body, and must be obtained from food.
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Adjusting the human body temperature downward has been used therapeutically, in particular, as a method of stabilizing a body following trauma. It has been suggested that adjusting the adenosine A1 receptor of the hypothalamus may allow humans to enter a hibernation -like state of reduced body temperature, which could be useful for applications ...
[citation needed] Circadian variation in body temperature, ranging from about 37.5 °C from 10 a.m. to 6 p.m., and falling to about 36.4 °C from 2 a.m. to 6 a.m. If an entity is homeostatically controlled it does not imply that its value is necessarily absolutely steady in health.
According to that same Outside article, “The lowest body temperature a human has been known to survive is 56.7 degrees [Fahrenheit], nearly 42 degrees below normal.”
A balanced approach that includes a range of nutrients like omega-3 fats, vitamin D, magnesium and creatine, plus sufficient calories and carbohydrates, helps maximize your muscle-building potential.