STAY “COLD” TO KEEP WARM
The acronym, COLD, will help you remember the four key things you need to do in order to stay warm:
• C is for “clean”: If your skin is clean, it is easier for your body to regulate its temperature. Also, clean clothing retains its insulating properties much better than dirty clothing. This also applies to moisture barriers such as Gore-tex that allow water vapor to escape while keeping actual liquid out.
• O is for “overheating”: Heavy exertion leads to sweating, which leads to your body and clothing getting wet. The moisture reduces the insulating qualities of your clothing and also conducts your body heat away from your body—which leads to your being cold. Evaporation of the sweat will also cool your body.
• L is for “layers”: Using layers of clothing helps you regulate your body temperature in two ways. First, the layers trap air warmed by your body and keep that heat next to you. Second, you can add or remove layers to help regulate your body temperature, depending on your level of activity and the type of weather you’re in.
• D is for “dry”: Water is an excellent conductor of heat. Unfortunately, it conducts heat away from your body when you are wet from overexertion or your clothing is wet from snow, rain or perspiration.