Monday, 25 November 2013


Human brain

Our brain is divided into two parts, left brain and right brain. These two parts of brain are sub-divided by a wall of fibers called as corpus callosum. There are innumerable brain cells called neurons in our brain. We have a very complex nexus of neuron networks.
Diagram of brain cells (Neurons)

A Neuron has a center called nucleus and branches called dendrites. In other words, we can say that our brain has a huge network of connected neurons. The total connections among neurons are more than the total number of atoms in the whole universe. The human brain has around 10 billion to 100 billion neurons.

About left and right brain
Left brain
  • It uses logic.
  • It controls words and languages.
  • It has propensity towards knowledge.
  • It is reality based.
  • This brain acts as a manager, thinker and accountant.

Right brain
  • It is motivated by feelings.
  • It controls symbols and images.
  • It has propensity towards belief.
  • It is based upon fantasy and imagination.
  • It deals with images, colors, music and dreams.

These two brains set communication through the wall of corpus callosum. The left brain controls the right part of the body and right brain controls the left part of the body.

Our modern education system deals with the left brain only and this reduces the performance and power of our right brain. So, there should be good co-ordination between these parts.

Brain waves and Brain states
When we drop a small stone in the water, we see a number of waves emerging on the surface of water. Similarly, our heart and brain have wave patterns. The wave patterns of heart is measured by ECG (Electro Cardio graph) and the brain waves are measured by EEG (Electro encephalograph).

Four Types of Brain waves

  1. Alpha waves :-
These waves indicate the state of relaxation and alertness. This state is considered ideal for inspiring oneself, learning facts fast. Its frequency ranges from 8 Hz to 14 Hz.

  1. Beta waves :-
It indicates that our conscious mind is in the state of control. It also shows that you are alert, awake, talking, doing work and solving problems. Its frequency ranges from 14 Hz to 30 Hz.

  1. Theta waves :-
Theta waves have a frequency of 4 Hz to 8 Hz and deals with the deep relaxation of the mind.

  1. Delta waves :-
Delta waves are associated with deep sleep. Their frequency ranges from 0.5 Hz to 4 Hz. Delta waves are known for triggering the release of growth hormone, which provides healing.
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