科学界早已证实,铅是一种金属毒物,对人体各组织器官均有一定毒性,尤对神经系统和循环系统毒性最大。轻微的铅中毒,会出现头晕、头疼、疲劳、烦躁、易怒、失眠和记忆力减退;严重者可见多种神经炎、手足腕神经瘫痪、肌肉萎缩无力;不少铅中毒者,因危及脑组织和脑血管,出现脑病,或者引起溶血病、血红蛋白代谢失常及心脑疾病。最近,意大利科学家发现,铅进入体内会形成牢固的化学结合物,并对心脏产生毒性作用。他们在实验中 The scientific community has long confirmed that lead is a metal poison that has some toxicity to tissues and organs of the human body, especially to the nervous system and circulatory system. Slight lead poisoning, dizziness, headache, fatigue, irritability, irritability, insomnia and memory loss; severe neuritis can be seen a variety of hand-foot and wrist nerve paralysis, muscle weakness; many lead poisoning, due to endanger brain tissue And cerebrovascular, encephalopathy, or cause hemolytic disease, hemoglobin metabolism disorders and heart and brain disease. Recently, Italian scientists found that lead into the body will form a strong chemical conjugates, and have a toxic effect on the heart. They are in experiment