Hold your breath under ice water for four minutes and seventeen seconds! How do Russian women do it?

Recently, a woman in St. Petersburg, Russia, challenged ice water. Finally, she succeeded with a score of 4 minutes 17 seconds, breaking the Guinness national record. Russian media said that it took the lady a year and a half to adapt to the extreme environment in ice water.

Try the "magic lung test" online. Experts suggest not to follow up, which is not reliable. Now the automatic transmission on the Internet and the video are marked with "lung health check". The reporter of Modern Express noticed that the method used in the test was actually suffocating. If you can follow the instructions, it means that your lungs are healthy and even resistant to coronary arteries. Is that really the case? Experts said that the suffocation ability can't reflect the true state of the lungs, and it is not recommended for the public to try. There are two versions of lung health order, and everyone can try their own suffocation anytime and anywhere. Recently, the animation and video of "Lung Health Test" on the Internet can help us to judge the health status of the lungs. The test also triggered discussion among netizens through popular online search, and many people also tested their mobile phones.

This test is divided into two versions: animation and video. They give the same test method: stare at the moving point on the progress bar and let the air breathe first, because it's time to move. At this point, you will notice that the speed of progress at this point begins to slow down. At point B, you can exhale. The logic given by the test is to suffocate from one point. If you can stick to point B, can you really test your lung health? After listening to the reporter's words, Wang Cheng, director of the Department of Respiratory Medicine of Nanlinban Hospital, thought that this was unreliable and there was no such operation.

"among professionals, we have special lung function testing instruments. Especially the elderly, most people are not good at doing this. Trying to have a feeling of suffocation is likely to be a problem. " People are suffering from lung disease, so don't try. Wang Cheng told reporters that some patients with emphysema may have pneumothorax. "Lung function tests are usually performed on the respiratory system or used to understand lung function before surgery. When you need to blow, it takes 6 seconds. Some people continue to test the normal lung function, but they can't do it. For example, patients with lung tests have heart problems. " Wang Cheng said that asphyxia is not a detection index in lung function testing.