Health Scan-December 2019 www.healthscan.biz
The Science of Yoga and health Series-3 Concept of Thoughts-1 Before understanding the Complex phenomenon of THOUGHTS, we need to understand basics of brain  The most challenging phenomenon of the human brain is the definition of mind or consciousness. Basically, this   cerebral phenomena has eluded precise scientific definition and thus are relegated to the grey areas of science and philosophy.  Both scientists and Yoga preceptors have their own ways of evaluating the ‘Thought’ phenomenon.    While scientists basically look in to neuro-biological pathways of understanding the dynamics of thought through Quantitative evaluation using empirical Metrics, Philosophical  pathways look only their qualitative aspects for serene living.  Brain & mind are two entities that work in the space of thought processes. Brain is like is like hardware while mind is like software.   Biology looks, thought process in a physical model while mind looks a thought in the abstract qualitative model.  It is to be understood that both  brain and mind work together in the generation, modulation, transmission & storage of thoughts.  The Yogic model starts from Mind to ensemble its effects in to brain. Thus yogic practices do influence brain from mind pathway. Therefore, yoga has the potential to affect  brain to ultimately influence body process and Health. V Sudhakara Rao Editor-in-Chief Health Scan Basics of brain Human brain is  the most amazing   organ in the entire universe. An adult brain weighs about 2 Kg and  contains about 100 billion nerve cells, called ‘Neurons’,  and  contains about 100 trillion connections. The  nerve signals which can travel  at a speed of 360 kilo meter per hour, convey and take messages between various parts of the body and brain.  In the  case of unexpected life threatening emergencies, brain can act at a fantastic computational speed of 40 lakh billion operations per second with thousands  of neuro-chemical reactions.  It can do   extra ordinary things challenging the ‘Laws of Physics’ and ‘Neuroscience’.    In simple words: Human brain is so complicated that one second activity of brain  is equal to action of 83,000 computer processors. The memory capacity of brain is very very huge. In terms of computer terminology it can store 20 lakh movies.   Various neural processes are encoded, registered or retrieved  as biochemical charge configurations which give an entity called thought. Various polarisations and depolarisations of charges  constitute mechanism of storing and retrieving thoughts. Such storage mechanism is often termed as memory.   Structurally  Structurally, entire brain is divided in to three segments:  Cerebrum, cerebellum and Brain stem. Cerebrum is divided in to four lobes  namely Frontal lobe, Temporal lobe, parietal lobe  and occipital lobe. Each lobe has certain dominant and specific functions, but, they all work in congruence  with one another for smooth functioning of entire human system physiologically, biologically, psychologically, sociologically and even at higher dimensional conditions like philosophically. Frontal Lobe Parietal Lobe Occipital  Lobe
Left hemisphere Right hemisphere
Cerebellum Brainstem Broca area Wernicke  area
Broca & wernicke areas are related to  language expression & processing and they are crucial in thought mechanism.
Temporal Lobe
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