“Vital Energy” in Ancient Medicine

Previously I wrote about Qi, the vital energy or life force energy derived from traditional Chinese medicine. Interestingly but not surprisingly, Chinese medicine is not the only one that believes in a vital energy guiding a person’s physical and mental processes.

Indian medicine has a similar concept called prana. Prana is also a life force energy that flows through the human body. When it flows freely and is balanced, it results in good health and well-being. If it gets blocked or thrown off-balance, it causes illness.

Chinese qi and Indian prana are very similar concepts, both help maintain health and happiness in humans by controlling physical and mental processes. And they are not the only ones either. Ancient Greek and Latin philosophies have a very similar concept: the Greeks called it pneuma (defined in the dictionary as the vital spirit or creative force of a person) while the Latin named it spiritus. The Japanese apparently call it ki. In fact, it seems 97 cultures around the world have a similar concept of life force energy. In the modern world, I guess this translates to the idea of spirit or soul, that's derived from the Latin spiritus. The phrase “May the Force be with you” takes on a whole new meaning now, doesn’t it?

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Origin of Neurology

As I consider majoring in neurobiology (the study of the biological mechanisms that control the nervous system) in college, I thought it would be interesting to delve into the origins of neuroscience. For hundreds of years from the ancient Egyptians to the Greeks, humans believed that the seat of intellect was the heart (which is why the ancient Egyptians went to great lengths to preserve the heart after death but discarded the brain!) The birth of neurology began 2500 years ago with Hippocrates who pondered over the purpose and functioning of the brain, reasoning that the brain must be the organ controlling sensation simply because most sensory organs - eyes, ears, and tongue -- are located close to the brain. This was starkly different from other opinions of the time which held that the heart was the main organ that controlled everything in humans. The brain was simply thought to be a "radiator" for pumping the heart and keeping it cool. Later, Hippocrates expanded ...

The Nervous System

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Galen

Even though Cajal is considered the father of neuroscience, his contribution came centuries after the first insights into the nervous system. As I wrote in my earlier posts, ancient doctors pondered over the nervous system, trying to understand what controlled the mind and body. Of these doctors, one that stands out is Galen, whose contribution to the understanding of the nervous system was fundamental to neuroscience. Through anatomical experiments, Galen was the first to observe and teach the functioning of nerves in the body. For these experiments, which he wasn’t shy about demonstrating to the public, Galen is regarded as the founder of experimental physiology. Galen is considered one of the most prominent and influential doctors in history, second only to Hippocrates. Galen was a staunch follower of Hippocrates and helped spread his teachings from Greece to the vast Roman Empire. Claudius Galenus, commonly know as Galen, was born in 129 AD in Pergamum in modern-day Turkey to a...

History of Medicine

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