Advertisement

How many connections can one neuron have?

Dr. Michael Roizen, MD
Internal Medicine
After birth, our rate of brain neuron creation slows down while the rate of connections skyrockets. It's normal for each neuron to have 1,000 connections. Over time, neuron creation stops altogether, then actually goes into reverse as nerve cells gradually die. The brain can still be fine-tuning its internal network well into our twilight years.

On average, only 10 percent of the messages to a neuron come from the rest of the body or from lower parts of the brain's hierarchy of operations (the "unconscious" part of our brain, which controls things like breathing and heartbeat). The rest is taken up by an enormous network of relationships with fellow neurons in the "conscious" part of our brain, all constantly providing feedback to each other—the brain's almost round-the-clock conversation with itself.
YOU: Having a Baby: The Owner's Manual to a Happy and Healthy Pregnancy

More About this Book

YOU: Having a Baby: The Owner's Manual to a Happy and Healthy Pregnancy

Can I get a cavity filled while pregnant? Will avoiding spicy foods make my kid a picky eater? Can I really increase my baby's IQ while she's in utero? Whether you're pregnant for the first time,...

Continue Learning about Neurons

What is myelin composed of?
Dr. Mehmet Oz, MDDr. Mehmet Oz, MD
Myelin, the cover over nerve fibers that ensures nerve impulses move quickly and correctly, is made ...
More Answers
What is a myelin sheath?
Jumo HealthJumo Health
A myelin sheath is a protective cover that wraps around nerves. The myelin sheath helps to make sure...
More Answers
Can neurons regenerate?
John H. Growdon, MDJohn H. Growdon, MD
For decades, the accepted wisdom was that neurons could not regenerate. Scientists used to belie...
More Answers
What are neurons?
Dr. William B. Salt, MDDr. William B. Salt, MD
The cells of your nervous system are called neurons. Your brain has approximately one hundred billio...
More Answers

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.