Research reveals: Gripping the bad habit of the pencil can be disabled

Research reveals: Gripping the bad habit of the pencil can be disabled
Once eat the lead into or inlet into the body, it is not apt to discharge outside the body. The intersection of lead and the intersection of quantity and large, day human body absorb, long, easy to nervous system, kidney and the intersection of blood and system,etc. lead to the fact, injure seriously. Behind the lead enters the human body, except that some discharge the body through excrement and urine, sweat liquid, the others will dissolve in blood in several hours, the ones that hindered blood are synthetic, cause human anaemia, headache, dizzy, weak, sleepy, constipation and limb appear to ache etc.. Some people even know and send out the metal flavor in the mouth, arteriosclerosis, digestive tract ulcer and optical fundus bleed etc. and seek the form. Lead malicious to can appear development to be slow losing the appetite, walking inconvenient and constipation, lose one's sight in the child. Pupil, how also work up and sense of hearing trouble and lack of concentration, intelligence drop etc.. This is because behind the lead enters the human body, invade the brain nerve fiber through the blood, make the nutriment and oxygen insufficient in supply, cause the brain to organize damaging, the serious one may be disabled all the life. Especially children are in growth state, more sensitive than the adult to the lead, to the plumbous absorbing amount is also several times taller than the adult, it is particularly serious to be injured. The lead enters pregnant woman's body, will reject through the placenta, influence foetus' development, cause deformity,etc..

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