Neurons

Q: How many connections can one neuron have?

Ans:  After birth, our rate of creation of brain neurons decreases while the speed of connections soars. It is normal for each neuron to have 1,000 connections. Over time, the creation of neurons stops completely and then goes into reverse when the nerve cells die gradually. The brain may still be perfecting its internal network in recent years.
On average, only 10 percent of messages to a neuron comes from the rest of the body or from the lower parts of the brain’s hierarchy of operations (the “unconscious” part of our brain, which controls things like breathing and heartbeats). from the heart). The rest is occupied by a huge network of relationships with fellow neurons in the “conscious” part of our brain, all constantly fed back to each other, the brain’s almost constant conversation with itself.

Q: Can the brain grow new neurons?

Ans:  In the early stages of development, the brain is highly flexible: damage to a specific area can often be repaired because existing neurons (specialized nerve cells that communicate with one another using chemical and electrical signals) can form new connections with other nerve cells. By the end of childhood, however, the brain loses much of this reparative power. While the adult brain can rewire itself to some degree, most of the neurons that die cannot be replaced. Unlike the heart, which can still support a marathon runner after losing 10% of its tissue, a 10% loss in the adult brain can result in devastating disability.

Q: Do we have a map showing all of the interconnecting neurons for any brain?

AnsThe only “brain” in which all of the interconnecting neurons have been mapped out belongs to a worm that is a millimeter long and has 300 nerve cells. It is called C. elegans.