Brain is a organ that think, learns and grows by interacting with the world through perception and action. Mental stimulation improves brain function and actually protects against cognitive decline, as does physical exercise.

The human brain is able to continually adapt and rewire itself. Even in old age, it can grow new neurons. Severe mental decline is usually caused by disease, whereas most age-related losses in memory or motor skills simply result from inactivity and a lack of mental exercise and stimulation. In other words, use it or lose it.

Journey of the Developing Brain

Only recently have scientists been able to learn how the neural network of the brain forms. Beginning in the womb and throughout life this vast network continues to expand, adapt, and learn. Take a look inside the brain at a cellular level to find out how our three pound universe forms and even how we learn.


Hippocampal Neurons
Evolving Brains Inspired Movement

Step back a half-billion years ago, to when the first nerve cells developed. The original need for a nervous system was to coordinate movement, so an organism could go find food, instead of waiting for the food to come to it. Jellyfish and sea anemone, the first animals to create nerve cells, had a tremendous advantage over the sponges that waited brainlessly for dinner to arrive. .
Elasticity and Plasticity

Elastic comes from the Greek word for “drive” or “propulsion.” It is the tendency of a material to return to its original shape after being stretched.

Elasticity is the basic animal drive that powers your muscles, giving you strength and balance – flexibility, mobility, and grace.
Plastic derives from the Greek word meaning “molded” or “formed.” It is the tendency of the brain to shape itself according to experience.

Plasticity is the basic mental drive that networks your brain, giving you cognition and memory – fluidity, versatility, and adaptability.
The Growth of Your Amazing Neural Network

Before birth you created neurons, the brain cells that communicate with each other, at the rate of 15 million per hour! When you emerged into the world, your 100 billion neurons were primed to organize themselves in response to your new environment – no matter the culture, climate, language, or lifestyle.

During infancy, billions of these extraordinary cells intertwined into the vast networks that integrated your nervous system. By the time you were four or five years old, your fundamental cerebral architecture was complete.
Until your early teens, various windows of opportunity opened when you could most easily learn language and writing, math and music, as well as the coordinated movements used in sports and dance. But, at any age you can – and should – continue to build your brain and expand your mind.
Expanding Your Amazing Neural Network

Throughout life, your neural networks reorganize and reinforce themselves in response to new stimuli and learning experiences. This body-mind interaction is what stimulates brain cells to grow and connect with each other in complex ways. They do so by extending branches of intricate nerve fibers called dendrites (from the Latin word for “tree”). These are the antennas through which neurons receive communication from each other. A healthy, well-functioning neuron can be directly linked to tens of thousands of other neurons, creating a totality of more than a hundred trillion connections – each capable of performing 200 calculations per second! This is the structural basis of your brain’s memory capacity and thinking ability.

As a product of its environment, your “three pound universe” is essentially an internal map that reflects your external world.
Learning at the Cellular Level

Many neuroscientists believe that learning and memory involve changes at neuron-to-neuron synapses. Such changes, called long-term potentiation (LTP), make it easier for connected neurons to communicate with each other, and therefore to form memories. LTP involves patterns of synaptic strengthening and weakening that can last for weeks. Because receptor aggregation may contribute to LTP – and dispersal may contribute to the reverse scenario, long-term depression – the discovery that receptors can scurry in and out of synapses strengthens the synaptic hypothesis of learning
Learning Uses Long-Term Potentiation Study

A study by neuroscientists at Brown University provided further evidence that learning uses long-term potentiation LTP to produce changes in the synaptic connections between brain cells that are necessary to acquire and store new information

When the researchers taught rats a new motor skill, scientists found that the animals’ brains had also changed. The strength of synapses between neurons in the motor cortex of their brains had increased through a process consistent with the use of LTP.
Previously, “the link between LTP, synaptic modification and learning was tentative,” said senior author John Donoghue, professor of neuroscience. “This latest study provides strong evidence that learning itself engages LTP in the cerebral cortex as a way to strengthen synaptic connections.”1
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Where Mind Meets Body – The Neuromuscular Junction

Brain chemistry reveals an essential unity of mind and body. Neurons not only contact other neurons, they also connect with skeletal muscles, at a specialized structure called the neuromuscular junction. There the brain uses acetylcholine – its primary chemical neurotransmitter for memory and attention – to communicate with muscles. Another of the brain’s key chemical messengers, dopamine, helps regulate fine motor movement.
The role of these neurotransmitters in regulating movement underscores the intimate relation between body and mind, muscle and memory. In fact, many bodyworkers find that deep massage can trigger the release and awareness of powerful, long-held emotional memories.
Muscles Activate Brain Receptors