Medicine got an early start in India, where even in the Stone Age, about 5000 BC,
dentists at Mehrgahr,
in the Indus River Valley (now in Pakistan), were drilling people's teeth to try to fix their cavities.
About 1000 BC,
doctors in northern India wrote theAtharva
veda, a medical textbook explaining how to treat diseases. Like Egyptian medical
texts a little
earlier, the Atharva veda says that diseases are caused by bad spirits, and you
treat the disease by killing the spirits with poisons or spells. One example is
the treatment of leprosy with a kind of lichen, which might have worked as an
antibiotic. Another example is the treatment ofsnakebite by
reciting charms. Possibly Yamnaya people brought marijuana with them when they came to India,
about this time.
The surgeon Sushruta may have lived about 500 BC. Sushruta
left a book, the Samhita, explaining his surgical methods. Sushruta described
how to pull teeth, how to fix broken bones, and how to fix blockages of
the intestines. He did operations on people's eyes to remove cataracts which sometimes
worked a little, though more often they left the patient completely blind. He
didn't have any anesthesia other than wine, though he
recommendedbhang (probably marijuana) to treat
coughs and dysentery.
Sushruta also describedtuberculosis. About the same time, Indian people were using
sand and charcoal filters to get clean water, which
probably saved many lives.
By about 200 AD, Indian
doctors, like Chinese doctors and Greek doctors,
had abandoned the idea of bad spirits in favor of the somewhat less wrong idea
of dosha or humors. The doctor Charaka wrote
perhaps about this time. Charaka recognized that prevention was the best cure
for many diseases, and he recommended keeping your humors in balance in order
to stay healthy. Charaka recognized three humors - bile, phlegm (snot), and
air. If your humors got out of balance, you should take medicines to rebalance
them. But he also knew some medicines that worked: doctors recommended citrons to cure scurvy (Vitamin C deficiency).
Indian doctors were so much respected that Indian traders got rich selling Indian medicines to
people in the Roman Empire, Iran, Sogdiana, East Africa,
and China.
By this time, Indian doctors also knew more
about how your body worked: Charaka knew, probably from the work of earlier Egyptian doctors,
that blood vessels both brought food to various
parts of your body and also carried wastes away, and that your brain was for
thinking.
Charaka also made the earliest Indian
reference to smallpox,
and this is just around the time that smallpox first devastated the Roman Empire,
coming from the East.
Under theGuptan kings, in the 300s AD, Chinese visitors praised India's hospitals.
Several hundred years later, Indian doctors
were the first to invent a way to inoculate people against smallpox. In the 700s AD,
a doctor called Madhav wrote about inoculation. Madhav knew that you could keep
people from catching smallpox by scraping a little pus or scabs from someone
who had smallpox,
letting it sit around for a while, and then giving a small amount as an
inoculation, either by sticking it into their skin on a needle, or by blowing
the powder up their nose.
When Muslims conquered northern India about 1000 AD,
many Iranian doctors came to India from West Asia to work
for Muslim kings there. These doctors realized that the Indian list of humors
didn't match the Islamic list of
humors, and tried to find out what was right. For example, some
Muslim doctors began to include air as one of the humors, and to combine black
bile and yellow bile as one humor.
These Muslim doctors also brought opium and henbane (another anesthetic) with
them to northern India, and by the 1200s AD,
Indian doctors as far south as the Chola kingdom (as we know from the Sarangdhara Samhita) had
learned to use opium both as an anesthetic and for diarrhea.
The doctor Lakshmana Pandita wrote in the early 1400s AD in theVijayanagara
Empire, under Imadi Bukka, the son of Hari Hari II. Lakshmana
Pandita wrote about the different types of fevers, dysentery,
miscarriages and fistulas, cancer, epilepsy, and kidney stones, among other
things. Like doctors everywhere in Afro-Eurasia at this time, he thought you
could tell what was wrong with patients by taking their pulse.
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