Outdoor Collection | How to deal with temperature loss effectively in winter outdoors

What is loss of temperature? What is the reason for the loss of temperature?

Loss of temperature, also known as hypothermia, refers to the body core area (cardiopulmonary, brain) temperature is lower than the normal body temperature symptoms, when the core body temperature below 35 °, that is life-threatening, but it still belongs to the scope of treatment.

The immediate cause of the loss of temperature is not the coldness of the environment—recognizing this is critical: First, it means simply increasing warmth, not necessarily preventing deprivation, and sometimes even counterproductive; second, an environment that does not look cold, Also be alert to the occurrence of loss of temperature.

The direct cause of temperature loss is both inside and outside:

On the one hand, a large amount of heat is dissipated on the body surface. On the one hand, the body's ability to generate heat is insufficient When the heat is less than the heat, the loss of temperature occurs. In other words, even if the environment is cold, as long as the body heat is greater than the heat, it will not lose temperature (but there may be local frostbite); even if the environment is not very cold (such as 0 °C to 10 °C), as long as the body heat is less than heat, still May lose temperature. (In Beijing, the occurrence of heavy winds and heavy rains caused by the winter weather at Xiaowutai was about 2000 meters above sea level.)

Outdoors, leading to body heat dissipation in winter

1, the cold effect

2, a lot of sweat evaporation

3. The warmth caused by the soaking of the clothes (falling water, melting of snow and ice, perspiration) is reduced, and at the same time, the low-temperature moisture absorbs the body heat, and the evaporation process takes away a lot of heat. If the clothes are soaked, this "heat loss" effect is faster and more pronounced.

The prevention program for the above-mentioned deregulation inducement:

Windproof, moisture permeable, breathable, wicking, keeping dry, maintaining a moderate rhythm of motion, proper warmth (to avoid sweating a lot).

The main factors that reduce body heating capacity

1, weak physical fitness, poor adaptability to cold environment;

2, excessive fatigue (including weakness caused by high anti-), excessive physical exertion;

3, lack of nutritional energy intake.

Preventive measures against reduced body heating capacity:

Adequate intake of high-calorie foods, a little hot sweet drink per hour, and moderate rhythm of exercise.

Emergency treatment after temperature loss

Key points: Avoid the wind and warm the small environment (tents, sleeping bags, clothing), quickly dry, heat the body, add hot drinks, and heat the environment.

Quickly put on self-heating padded clothes, then put on a thick down jacket, sit on the leeward sunny place, or drill into the hot-reflective tent, and after a slight recovery, lit the tent heater.

Responding to the "lost-temperature" clothing with a plan example

Snowstorm, cold in the march: Emergency underwear + ordinary cashmere underwear + ultra light down jacket + sweat warm clothes, windproof breathable, perspiration, dry warm, and moderate warmth, to avoid a lot of sweating.

Breezy ice and snow environment in the middle speed travel: soft shell underwear + fleece underwear + sweat wicking warm clothes, windproof breathable, wicking and quick-drying, and moderate warmth, to avoid a lot of sweating.

Breezy and cold environment, light weight sports and marching: soft shell underwear + fleece underwear + ultra light down jacket + sweat wicking warm clothes, windproof breathable, sweating and quick-drying, and moderate warmth, to avoid a lot of sweating.

Relaxation and camping in a high-cold environment: thick down jacket + self-heating padded jacket, and heat reflecting tent + tent heater.

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