Lead is one of the most toxic heavy metal pollution, but once it enters the human body, it is difficult to eliminate it. Direct damage to human brain cells, especially fetal brain plate, can cause congenital shallow cerebral sulcus and mental retardation; Leading to dementia and brain death in the elderly.
Aluminum: Long-term accumulation, causing mental retardation to children; Leading to memory loss in middle-aged people; Causing dementia in the elderly.
Mercury: It sinks directly into the liver after eating, which is harmful to the brain and vision. Natural water contains 0 per liter of water. 0 1 mg, will be strongly poisoned.