Winter evening. Outside, a blizzard. Inside, warmth. The scent of pies. A blanket and a cat on the sofa. You feel peace. Warmth in the house is not just temperature. It's a feeling of safety, comfort, happiness. Why is warmth so important for our brain? And how is it related to evolution? Evolutionary Mechanism Our ancestors survived in cold climates thanks to fire and shelter. Those who found a warm refuge had a better chance of surviving and leaving offspring. Therefore, the brain established a connection: warmth = safety. In a cold room, a person feels anxiety (the ancient fear of freezing). By wearing a sweater, you are not just warming up, you are deceiving the brain: "danger is over". Research: people are happier at room temperature of +22...+24°C than at +18°C. Warmth as a Symbol of Love In childhood, our mother warmed us with her body. Hugs gave warmth. Therefore, an adult person seeks "warmth" in a partner (not only literally). When we say "warm person," we mean caring, tender. The connection: warmth in the house symbolizes warmth in relationships. Family traditions (shared meals, tea by the fireplace) strengthen this connection. A cold house (drafts, mold) is associated with cold relationships (indifference, arguments). Biophilia and Comfort Biophilia — the innate love of man for nature. Warmth in the house is associated with the sun, summer. Therefore, people love sunlit rooms, fireplaces, candles. Fire (fireplace) has a particularly strong effect: flickering flames reduce blood pressure, pulse. People can watch the fire for hours — it's meditation. A cozy house with warmth is a substitute for a natural niche where a person feels safe. How Temperature Affects Mood Too hot (more than +27°C) — irritability, aggression, fatigue. Too cold (less than +18°C) — apathy, desire to crawl under the blanket, depression. Optimal +20...+23°C. People living in warm houses get sick less often, argue less often, have higher productivity. Finns, whose houses are ... Read more