The hazards of vulcanizing agents on human body include the nervous system, cardiovascular system, respiratory system and other aspects. 1. Nervous system: Sulphurizing agents can compete with brain cells for oxygen, leading to insufficient oxygen supply to the brain, which can lead to central nervous system symptoms such as coma, dizziness, headache, fuzzy consciousness and fatigue. 2. Cardiovascular system: Sulphating agents can lead to coronary artery spasm, resulting in myocardial ischemia, which can seriously induce myocardial infarction. 3. Respiratory system: Sulfurizing agents are irritating, which can stimulate the mucous membrane of respiratory tract, resulting in cough, runny nose, throat discomfort, bronchial spasm, and respiratory difficulties. Sulphurizing agent can also lead to decreased perception, loss of appetite, thinness, limb weakness and other adverse reactions.