THE OBVIOUS IS INCREASINGLY CONFIRMED BY THE SCIENCE.

—“Seven novel biological systems associated with intelligence differences were found.

1 Neurogenesis, the process by which neurons are generated from neural stem cells.

2 Genes expressed in the synapse, consistent with previous studies showing a role for synaptic plasticity.

3 Regulation of nervous system development.

4 Neuron projection

5 Neuron differentiation

6 Central nervous system neuron differentiation.

7 Oligodendrocyte differentiation.

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