In summer, we use the heat index, and in winter, we refer to the perceived temperature. Perceived temperature reflects the temperature felt on the skin, influenced by factors like humidity, solar radiation, and notably, wind. Wind has the most significant effect on perceived temperature, typically causing it to decrease by approximately 1–1.5°C for every 1 m/s increase in wind speed. For instance, if the temperature is 0°C [32°F] and the wind speed is 10 m/s, the perceived temperature would drop to -15°C [5°F].
To raise the perceived temperature, it’s crucial to dress warmly with items like scarves, hats, and gloves to cover any exposed skin. Another method involves recalling happy memories. Researchers at the University of Southampton Psychology Department in the U.K. conducted an experiment with 64 participants, dividing them into two groups and placing them in a room with the same low temperature. Group A was instructed to recall an ordinary event, while Group B was asked to recall happy and joyful events. The results revealed that Group B perceived the room to be warmer than Group A. Additionally, Group B participants were able to keep their hand in ice-cold water for a longer duration than Group A.
Recently, a survey conducted by Company M revealed that the “emotional temperature” of Koreans averages at -14°C [6.8°F]. However, despite harsh realities, could enga’ging in joyful and happy thoughts not only raise the perceived temperature but also thaw the frozen emotional temperature?
“Our study has shown that nostalgia (happy memories, being loved, etc.) serves a homeostatic function . . . in this case making us feel warmer or increasing our tolerance of cold.” Dr. Tim Wildschut at the University of Southampton, U.K.