Nitric oxide is very harmful to human body. Because it has an anesthetic effect, taking too much will cause nerve paralysis, destroy neurons and somatic cells in the cerebral cortex, produce emaciation, fatigue, mild hallucinations, lead to mental disorders, and even some students will be paralyzed. An international student in China returned to China in a wheelchair because of excessive use of nitrous oxide. Another student in Guangzhou was sent to a mental hospital because of excessive laughing gas, which led to mental disorder. It can mainly inhibit the descending nerve pathway, and then make people feel mild pleasure and relieve anxiety. It's addictive.
Other students, who make friends carelessly, are often led by their friends, and then a group of people can't stop. If there is positive energy around you that can help friends in time, there will be no such consequences.
If friends who usually adopt a correct lifestyle, such as fitness, can increase phenolphthalein in the body and relieve anxiety. Instead of using laughter. But like drugs, it only circulates in a small area. Most of them are mentally empty or misguided young people. If they are really studying abroad to do research, high flyers generally won't bring them, because they have self-control and discernment, and know what harm they will get. So be sure to stay away from drugs and build a high-quality circle of friends.