Among adolescents, some popular Online topics or challenges may be at risk of triggering the urge to self-harm, as follows： ### Dangerous Behavior Challenge Category 1. **"Suffocation Challenge”** -**Content**: Participants tried to achieve a special feeling by restricting their breathing, such as covering their heads with plastic bags and tightening their necks to block air circulation. -**Harm**: This behavior can easily lead to hypoxia of the brain, causing dizziness, loss of consciousness and even death by suffocation and other serious consequences. In the process of pursuing the so-called stimulating experience, adolescents lack a correct understanding of life safety, and they can easily cause irreversible damage to their bodies due to improper operation. This kind of serious life-threatening behavior may cause some psychologically fragile or impulsive adolescents to self-harm or even end their lives. Urge. 2. **”Sword Swallowing Challenge"** -**Content**: Participants are required to swallow sword-like objects into their throats, trying to challenge the limits of human swallowing. -**Hazards**: Sword-like objects are sharp and irregularly shaped. They can easily cut through important organs such as the esophagus and trachea during swallowing, causing severe bleeding, infection and other serious complications, which may lead to breathing difficulties, shock and even death. This kind of challenge that causes direct and serious trauma to the body will make young people ignore their own health and safety. When faced with the failure of the challenge or the possible adverse consequences, they may fall into extreme anxiety and fear, which in turn produces the urge to self-harm, such as harming themselves in a more extreme way to relieve their hearts.The pressure. 3. **”Rib Valgus Challenge"** -**Content**: Teenagers inhale hard to make their ribs visibly valgus, and then take pictures or videos and post them on the Internet for display. -**Hazards**: Excessive force of inhalation leads to abnormal valgus of the ribs, which may cause damage to the thoracic bone structure. Repeated long-term use may also affect the normal development of the lungs and respiratory function. Some adolescents may find physical discomfort during the attempt, but due to the influence of the atmosphere of “challenge success” on the Internet, in order to meet the so-called standards or prove themselves, even if the body issues an alarm, it does not stop. This kind of excessive loss and neglect of the body may cause them to worry about their own health andAnxiety, in turn, turns into the urge to self-harm, such as excessive dieting, drug abuse and other behaviors to try to control the body or punish yourself. ### Emotion inducing class 1. **"Blue Whale Game”** -**Content**: This is a highly dangerous online suicide game. The organizer of the game will assign participants a series of tasks, from simple self-harm behaviors, such as making small cuts on the arm, burning yourself with cigarette butts, etc., gradually escalate to more serious self-harm behaviors, and finally induce participants to commit suicide. These tasks are usually accompanied by a certain time limit, controlling participants by creating an atmosphere of tension and fear. -**Hazard**: It uses the curiosity of young people and their desire to explore new things to lead them into a dangerous abyss step by step. Adolescents are in a stage where their psychological development is not mature enough and they are vulnerable to external influence. Under the induction of games, they may gradually lose control of their behavior and fall into a distorted psychological state. With the intensification of self-harm behavior, their physical and psychological suffering is huge, and they may eventually choose to end their lives under the further bewitching of the game organizers. This kind of game not only directly leads to the self-harming behavior of young people, but also seriously threatens their lives and safety, causing great harm to society and the family. 2. **Some topics that promote negative emotions** -**Content**: Some topics on the Internet about negative emotions such as depression and despair are highly discussed. For example, content such as “What kind of experience is depression” and “What to do if you feel that there is no hope in life” frequently appear on some social platforms. -**Hazards**: Adolescents are in a period of greater mood swings and more psychologically sensitive. Excessive exposure to such negative topics may resonate with them, especially those teenagers who are in an emotional trough or have psychological distress. They may feel that their negative emotions are understood and magnified, and thus fall into a deeper sense of despair and helplessness. The continuous accumulation of this kind of negative emotions may trigger their urge to self-harm, trying to relieve their inner pain through physical pain, such as cutting wrists, hitting walls, etc., in order to seek a temporary relief or attract the attention of others. ### Aesthetic deformities 1. **The pursuit of excessive weight loss “thin beauty challenge”** -**Content**: On social media, some so-called "fashion trends” or "aesthetic standards" advocate that an overly thin body is beautiful. Young people are affected by this misconception and participate in various “thin beauty challenges”, such as excessive dieting, crazy exercise to lose weight, etc. -**Hazards**: Excessive dieting can lead to physical malnutrition, a series of health problems such as anemia, hypoglycemia, and endocrine disorders, which affect the normal growth and development of adolescents, such as growth delays and menopause. Long-term excessive exercise may also cause muscle strains, joint injuries and other physical injuries. When teenagers find that no matter how hard they try, they cannot reach the kind of extreme weight loss standards promoted on the Internet, they are prone to strong frustration.