Skip to main content

Our Planet, Our Health

For World Health Day 2022, the WHO has selected the theme, "Our Planet, Our Health", with the aim of creating a healthier world. WHO's statement reads,  "In the midst of a pandemic, a polluted planet, increasing diseases like cancer, asthma, heart disease, on World Health Day 2022, WHO will focus global attention on urgent actions needed to keep humans and the planet healthy and foster a movement to create societies focused on well-being." 


In the spirit of World Health Day, I wanted to explore the idea of health in ancient medicine. This is a topic that I have written on before but I thought it would be interesting to compare the ideology of good health in different societies of the ancient world.

Ancient Medicine

Across all ancient civilizations, before scientific thought became common, the prevailing idea was that 
good health was a divine gift, while poor health was attributed to divine punishment.

Theory of Spirits

Even though the ancient Egyptians were one of the first to impart medical treatment, the prevalent theory on health was that it was controlled by gods, demons, and spirits. It was believed that spirits blocked channels in the body which in turn affected the functioning of the organs.

Theory of Humors

In ancient Greek medicine, which was built on Hippocrates' teachings, good health was attributed to the balance of the four humors in the body:  blood, phlegm, yellow bile, and black bile. 

Theory of Consciousness and Doshas

According to Ayurveda, the ancient Indian medicine, disease is caused by an imbalance or stress in a person's consciousness; good health is achieved by a balance between the body, mind, spirit, and the environment. Health can also be impacted by an imbalance in the three doshas: vata, pitta and kapha.

Theory of Qi and Life Forces

Traditional Chinese Medicine (TCM) believes that good health is the result of a balance between the vital forces of life called Qi, which is made up of opposing forces yin and yang. Good health is maintained by achieving a balance between the internal body organs and five external elements: earth, fire, water, wood, and metal.


Despite the seemingly diverse theories, a common concept of health in ancient medical science (apart from the divine beliefs) is that a balance between various elements is necessary for good health. If you think about it carefully, that is not far from what we know today, and what the WHO has clearly stated as its mission for achieving global health: a synergistic balance between humans and the environment. It is very clear that the health of humans is dependent on the health of the planet. So in order to achieve good health, we need to learn to live harmoniously with nature. That's really akin to achieving a good balance in life.

Comments

Popular posts from this blog

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 ...

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...

The Nervous System

Just as the purpose of the brain and the heart confused ancient scientists, so did the nervous system. Nerves had been identified fairly early but they proved difficult to categorize. Some thought it was similar to arteries and formed some sort of connective system for tissues. In fact, the word nerve is Greek for tendon or sinew, suggesting that it was thought to be some sort of physical connection. Despite the confusion about its exact mechanism, ancient medical practitioners seemed to understand its function. Nerves were attributed to both movement and sensation correctly, even though there were opposing views on what controlled these functions. Aristotle argued that nerves originated and were controlled by the heart, while others argued nerves were controlled by the brain. Centuries later, Galen proved that nerves emanated from the brain, scoffing at those “who know nothing of what is to be seen in dissection." Galen was the first to conclude that the spinal cord was an ...