A cold thermostat is rarely just about body temperature. For many adults, keeping the house at 17 or 18 degrees is a replay of childhood lessons where warmth was tied to family budget arguments.
This isn't about biology. It's about embodied cognition-the body carrying history. A child who learned that turning up the heat meant financial strain grows into an adult who feels guilt at the dial.
University of Delaware research from 2026 shows childhood socioeconomic status shapes daily life texture: which rooms you sit in, what you're allowed to ask for, how much heat the house holds.
The behavior isn't stinginess. It's emotional inheritance. Partners often clash not over temperature but over what the dial means: comfort vs. control.
The tell is emotional charge. Genuinely temperature-tolerant people feel nothing when heat goes up. Others feel a flare of anxiety or resentment.
Key question: Would you keep it this cold if money weren't an issue? If the answer flinches, the preference is carrying more than it seems.