Cold Zone to prevent fatal factors

Cold: This is the "number one killer" causing death in high latitudes and alpine regions. In mid-May this year, it was supposed to be the golden season for climbing Mount Everest. However, the sudden arrival of Blizzard caused the temperature in the vicinity of the peak to drop to -40°C in a very short period of time, which caused great difficulties for the climbers. hurt. The extreme cold can cause people to lose a lot of heat, slow down the heart movement, and eventually lead to death.

For this reason, some developed countries have specially developed cold insulation clothing for the mountaineers in order to reduce the loss of body heat. The human body can generate heat during exercise and muscle shake, protecting the heart and body.

Oxygen loss: It was determined that the oxygen content in the atmosphere at the summit of the Mount Everest is only one third of the oxygen content in the sea level atmosphere. Oxygen deficiency can make people tired easily. At low altitude, people only need to breathe 12 times per minute. Near the peak, they must breathe 50 times to ensure the body's normal oxygen needs, and ensure that the carbon dioxide in the lungs is discharged. Increase the body's oxygen content.

At present, except for some special mountaineering projects, most climbing expeditions are equipped with lightweight, reliable oxygen cylinders to increase the safety of climbing.

Dry wind: Although the peaks are often covered by snow and ice, the wind there is very dry. Every time a climber loses his breath, he loses water. According to calculations, when climbing a tall mountain like Mount Everest, the loss of blood in the body's blood can be over 15 to 40% due to breathing. In high latitudes, the increase of blood red blood cells makes the blood thicker, which may increase the chance of frostbite. Moreover, dry wind is often associated with severe cold. In conventional mountaineering activities, in addition to carrying enough water, climbers often carry convenient and effective stoves to dissolve snow water and supplement the loss of human body water.

Judgment errors: The increase in altitude will cause some adverse effects on the human brain, causing instability in people's mood. It is prone to panic, resulting in misjudgments and even self-harm. These adverse factors are fully taken into consideration when preparing for climbing.

Experienced mountaineering teams usually adopt a group climbing tactic after reaching a certain height. In this way, in the event of danger, the team members can work closely with each other, take care of each other and be motivated, overcome difficulties together, and bravely climb and descend safely.