What symptom does human body lead exceed standard

summary

We know that environmental pollution is very serious now. For children, their body is weak. At this time, we should pay more attention to protection. Excessive metal elements in the body will do great harm to the body, especially the damage to the body system. Timely treatment should be carried out, otherwise serious cases will lead to death. Excessive lead in the body is a common occurrence, and parents and nannies should be responsible for the children Children lead poisoning has some basic knowledge to help children stay away from pollution sources. Now let's share the symptoms of excessive lead in human body.

What symptom does human body lead exceed standard

First, one is to affect the development of intelligence and behavior. After birth, the brain has a gradual development process, and the content of trace elements related to brain development also increases. Some trace elements are necessary for brain development, but there are also elements that damage children's nerves, which are lead and mercury.

Second, the probability of mental retardation caused by lead poisoning is very high. Compared with normal children, children living in lead polluted environment are mentally retarded for more than two years. Among them, children with lead poisoning will gradually decline in academic performance, and their coordination ability and response speed to stimulation are also relatively poor.

Third: there is short stature, so lead can affect children's physical growth, because lead can hinder the activation of vitamin D in the body, reduce its activity, and inhibit the absorption of calcium in the gastrointestinal tract. In addition, the increase of blood lead level can reduce the level of thyroid hormone and pituitary adrenal function.

matters needing attention

Finally, we want to say that if children want to grow up healthily, the role of calcium, iron and zinc in children's physical development is indispensable. Their lack can lead to children's neurological dysfunction and affect children's growth and development. However, the lack of calcium, iron and zinc is the result of high blood lead concentration. The oxidation of lead ions is stronger than these elements, which accounts for the channel for the body to absorb them.