据有关资料介绍,七十年代,英国伯明翰大学的神经科学家麦克康拿尔和伯里两人,曾做过这样的实验: 大白鼠出生以后分成两组,对一组限制其吸乳,人为地使这些幼鼠造成营养不良;30天后,将它们处死,认真检查其脑,发现限制吸乳组的脑细胞明显小于营养正常的对照组的脑细胞。他们在此基础上又作了一个实验:在限制吸乳30天后,便不再加任何限制;而在第80天将其处死,再检查其脑,发现其脑发育的缺陷大多数依然存在。这说明幼时营养不良造成的脑发育缺陷,即使后来加强营养,也难以弥补。这一实验给人体科学家以极 According to relevant information, in the seventies, the University of Birmingham neuroscientists McConnell and Bury both have done such experiments: rats were divided into two groups after birth, a group of restrictions on breast-feeding, artificially The pups were malnourished. After 30 days, they were sacrificed and their brains examined carefully. It was found that the brain cells in the restricted breast milk group were significantly smaller than those in the normotensive control group. On the basis of this, they made another experiment: no restriction was imposed after restriction of breast-feeding for 30 days; on the 80th day, they were sacrificed and their brains examined to find out that most of the defects in their brain development still existed. This shows that childhood malnutrition caused by brain development defects, even if later to strengthen nutrition, it is difficult to make up. This experiment to human scientists extremely