Evolution of the perfect aircon temperature

Our indoor air-conditioning settings most closely resemble the climate of west central Kenya, and reflects the temperature comfort zone of other primates, according to US research. The small study of 37 houses across the US looked at whether the average temperatures of our home aircon matches the climates in the regions in which our ancestors evolved. They found that the indoor climates of our homes largely matched the temperature range at which humans and other primates can control their body temperature without using up too much energy. The authors say the simplest explanation for this is that we attempt to recreate the conditions from which we evolved, and that future work should test this idea.