1. When winter arrives and the room temperature is maintained at 25 degrees Celsius, one often perceives it as colder than in summer. This could be attributed to the difference in outdoor temperatures and the stable indoor conditions.2. During the day, as the outdoor environment heats up, the closed doors and windows prevent the indoor air from circulating freely. As a result, the heat generated inside the room has difficulty dissipating into the outside world.3. At night, when the external environment cools down, the heat inside the room begins to radiate into the cooler surroundings. This process causes the indoor temperature to drop, leading to a sensation of coldness even at 25 degrees Celsius.4. Additionally, air conditioning may be running in the room. The use of air conditioning should be tailored to personal preferences and household financial capabilities.5. For smaller living spaces, a combined heating and cooling unit may suffice. For larger areas, such as duplexes or expansive rooms, a central air conditioning system is more appropriate.6. In localized small areas, such as bedrooms or bathrooms, an electric heater can be used, providing heat within a limited range and conserving electricity.7. Radiative floor heating installed beneath the floor can maintain a relatively comfortable temperature throughout the home, reminiscent of a sauna's warmth.8. To avoid unnecessary complications and safety hazards, it is recommended to have professional installation for home decorations and not to modify equipment randomly.9. When the room temperature is low, people are more prone to having nightmares, which can be linked to compromised sleep quality.10. The sensation of coldness in a 25-degree Celsius room during winter may also be related to psychological factors and a sense of environmental security.11. These explanations summarize why one might feel colder in a 25-degree Celsius room during winter compared to summer.詳情