Alpine skiing, skydiving, wingsuit flying, cave diving, free climbing, these sound cool and exciting projects have a common name - extreme sports, most of them originated in Europe, hundreds of years to attract countless warriors to challenge the limit.

Some athletes know the risks, but do not want to give up the heart; Some mountaineering "old birds" regard every climb as the "understanding" of life, and rational response to risks makes them survivors.

However, the tragedies of an American rock climber forced to amputate his leg, a 28-year-old girl skydiving into a truck, and a French skier killed during training have also been repeated,

reminding people not to ignore the deadly risks behind extreme sports. Whether professional athletes or ordinary people who want to experience a thrill, they must abide by the safety norms of extreme sports and carefully prepare for the journey.

At the same time, extreme sports are not equal to the limit of playing cool, climbing the limit of taking selfies and jumping in the air on the roof of the high-altitude parkour, which has staged a tragedy in Russia and claimed the lives of young teenagers.

Any showy, follow the trend, bravado type of sports behavior, not only is not responsible for their own lives, but also violates the original intention of extreme sports.

The deadly risks behind the Fast and Furious

It has taken a long time for extreme sports to emerge and become popular.

Alpine skiing was first enjoyed by Norwegians living in the Arctic Circle - legend has it that the locals were using skiing techniques to hunt in the mountains as early as 3000 BC. The fast and furious sport became popular in Northern Europe, Russia and even the United States until 1936, when it became an Olympic event in Germany.

The modern alpine skiing competition is subdivided into curved track, grand track, super grand track, downhill race and mixed ski race and other small items, taking downhill race as an example,

the male athletes pass through the track, starting and finishing altitude drop of 800-1000 meters, but also constantly through the dense distribution of flag doors, which is difficult and challenging.

The author uses the case of French skier Davy Poisson, who died while training in Canada, to discuss the risks of alpine skiing. Poisson, 35, already a veteran of the ring and a bronze medalist at the World Championships,

was at the resort in Alberta in intensive training ahead of the World Cup. During one slide, he accidentally hit a tree, then broke through two layers of safety nets and died on the scene.

In a letter of condolences, the International Ski Federation said Poisson had done well since his debut in 2004. Among those who have expressed their condolences are many veterans of the skiing world, with former French alpine skier Luc Alpande sadly telling the media that it is impossible to completely eliminate the risk of skiing downhill.

"Normally, we don't talk about the danger," said Bryce Bennett, an American athlete competing in PyeongChang, "because it doesn't help, and if you talk too much about the risk, it's more likely to become a reality."

Canadian athlete Manuel Paradis admitted after an Olympic training session: "In the first few training sessions after David's death, I admit that the accident did shake my confidence."

Skydiving also rose in Europe, as early as in October 1797, the French young Andre Jacques Ganarin has risen to the height of 1000 meters with the help of a hot air balloon, and completed the first parachute jump in human history in Paris.

By August 1951, skydiving had become a popular sport around the world, and the first championship was held in Yugoslavia. Skydiving can be divided into several types of low altitude skydiving, stunt skydiving and water skydiving, and the danger index is quite high.

Witnesses said the skydiver was struggling as the wind carried her away from the safe landing zone at the Skydive Lodi parachute Center. She was killed when she collided with an approaching truck on Highway 99 in California.

Survivor's voice: Know the risks, but go ahead

High-altitude mountaineering, cave diving, skydiving, bungee jumping, and free-climbing all sound scary enough, but a group of naturally adventurous athletes continue to challenge danger and leave a legend behind.

Writing in Climbing magazine, Gary Child told the story of high-altitude mountain challenger Doug Scott, calling him the great survivor of extreme sports. On the 12th day of their ascent of Shivling in the Indian Himalayas,

the weather worsened and the pair ran out of ammunition and supplies, leaving them huddled in a 20,000-foot crevasse sheltered not only from strong winds but also from the ice kicked down by climbers above.