Here is an article worth reading:
Back in the 1960s, a Harvard graduate student made a landmark discovery about the nature of human anger.
At age 34, Jean Briggs traveled above the Arctic Circle and lived out on the tundra for 17 months. There were no roads, no heating systems, no grocery stores. Winter temperatures could easily dip below minus 40 degrees Fahrenheit.
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Source: https://www.npr.org/