Title: Cold and heat adaptations in humans - Wikipedia
Headings: Cold and heat adaptations in humans
Cold and heat adaptations in humans
Contents
Origin of cold and heat adaptations
Ecogeographic rules
Physiological adaptations
Cold
Heat
Acclimatization
Cold
Heat
Culture
Cold
Heat
Genetic adaptations
References

Content: Both humid heat and dry heat favor individuals with less fat and slightly lower body temperatures. Acclimatization
When humans are exposed to certain climates for extended periods of time, physiological changes occur to help the individual adapt to hot or cold climates. This helps the body conserve energy. Cold
The Inuit have more blood flowing into their extremities, and at a hotter temperature, than people living in warmer climates. A 1960 study on the Alacaluf Indians shows that they have a resting metabolic rate 150 to 200 percent higher than the white controls used. The Sami do not have an increase in metabolic rate when sleeping, unlike non-acclimated people. Aboriginal Australians undergo a similar process, where the body cools but the metabolic rate does not increase. Heat
Humans in Central Africa have been living in similar tropical climates for at least 40,000 years, which means that they have similar thermoregulatory systems. A study done on the Bantus of South Africa showed that Bantus have a lower sweat rate than that of acclimated and nonacclimated whites. A similar study done on Aboriginal Australians produced similar results, with Aboriginals having a much lower sweat rate than whites.