they couldn't they wild just have to do anything they could to either stay warm or stay cool
They didn't nature did
They didn't. They had to live with what-ever the weather brought them. Heat, cold, freeze, floods, mud, snow, ice, rain. They were lucky to have a fire to keep them warm. I imagine that people were either hot, cold, or wet all the time.
The type of dwellings that were common among the people of the southwest were sun-dried mud brick called adobe.
Nomadic people carry their dwellings with them
There are many purposes for a digital temperature controller in everyday life. Most people however use digital temperature controllers to control the temperature in their refrigerators.
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Dwellings, industrial sites, farming
Deforestation clears land for farms and dwellings for people.
During the Neolithic period, people used large stones and wood to make dwellings.
The Anasazi Indians.
Cave dwellings are from ancient times and serve mainly as archeological and touristic attractions. While some cave dwellings may still be in use, it's hard to find information on how many people live in cave dwellings since this would generally occur in poor parts of the world.
Hippocampus and hypothalamus