system
Given the following post, respond as if you're commenting on Reddit:
human
How do humans get accustomed to the temperatures of the places they live?

For example Eskimos can handle the cold very well and Aborigines do well in the heat.  Also as simple as someone from Minnesota will be wearing shorts when it's 30 degrees but someone from Miami will be shivering while bundled up in layers.
gpt
The body has a temperature regulation system controlled by the hypothalamus. When in colder weather, it signals the pituitary gland to produce more thyroid stimulating hormone to increase metabolism and create more heat. It doesn't happen as much today due to air conditioning and heat, but in older times people's hypothalami would reset each summer and winter due to the seasonal temperature changes as well.