Imagine, as you age, your brain never grow new cells to replace the ones that died. No wonder, when we age, we can lose memory, lose this lose that."To learn is to eliminate," says neurobiologist Jean-Pierre Changeux. From the embryonic stage itself, there is a furious amount of editing at work to fine-tune our brain content. It startled scientists to discover that our growing up and learning process is not of adding new material so much as editing existing ones. Nerve cells in the brain die without being replaced in our infancy (or in degenerative brain disease as adults), although they appear to remain fairly stable later through a lifetime of healthy individuals. The fact remains that the brain is the only organ that does not grow new cells to replace those that are lost.
Oh god, help us.
Kisses to you.