Although there is no record to establish when plants were first used for medicinal purposes (herbalism), the use of plants as healing agents, as well as clays and soils is ancient. Over time through emulation of the behavior of fauna a medicinal knowledge base developed and passed between generations. As tribal culture specialized specific castes, shamans and apothecaries fulfilled the role of healer.[1] The first known dentistry dates to c. 7000 BC in Baluchistan where Neolithic dentists used flint-tipped drills and bowstrings.[2] The first known trepanning operation was carried out c. 5000 BC in Ensisheim, France.[3] A possible amputation was carried out c. 4,900 BC in Buthiers-Bulancourt, France.[4]
Over the centuries, reports occasionally surfaced of caesarean sections saving the lives of both mother and baby, but even after the introduction of antiseptic methods and anaesthesia, caesareans remained a dangerous last resort. So Edinburgh surgeons were surprised to hear a lecture by Robert Felkin, a missionary doctor, about a successful operation that he had witnessed in the African kingdom of Bunyoro Kitara five years earlier.
e nation's highest civilian award was established by President Harry S. Truman in 1945 to recognize notable service during World War II. In 1963, President John F. Kennedy reintroduced it as an honor for any citizen who has made exemplary contributions to the security or national interest of the United States, to world peace, or to cultural or other significant endeavors.
The advances in medicine made a dramatic difference for Allied troops, while the Germans and especially the Japanese and Chinese suffered from a severe lack of newer medicines, techniques and facilities. Harrison finds that the chances of recovery for a badly wounded British infantryman were as much as 25 times better than in the First World War. The reason was that:
Contemporary humans in developed countries are mostly free of parasites, particularly intestinal ones. This is largely due to frequent washing of clothing and the body, and improved sanitation. Although such hygiene can be very important when it comes to maintaining good health, it can be problematic for the proper development of the immune system. The hygiene hypothesis is that humans evolved to be dependent on certain microorganisms that help establish the immune system, and modern hygiene practices can prevent necessary exposure to these microorganisms. "Microorganisms and macroorganisms such as helminths from mud, animals, and feces play a critical role in driving immunoregulation" (Rook, 2012[26]). Essential microorganisms play a crucial role in building and training immune functions that fight off and repel some diseases, and protect against excessive inflammation, which has been implicated in several diseases. For instance, recent studies have found evidence supporting inflammation as a contributing factor in Alzheimer's Disease.[27]

Sushruta advises his students that however well read they are, they are not competent to treat disease until they have practical experience. Surgical incisions were to be tried out on the skin of fruits, while carefully extracting fruit seeds enabled the student to develop the skill of removing foreign bodies from flesh. They also practised on dead animals and on leather bags filled with water, before being let loose on real patients.
This paradigm shifting book shows how to build the practice of your dreams and still have a life; from efficiency to community and education to evangelism. He writes on the How to do it while maintaining your own health and life. The Evolution of Medicine speaks of the history and future of patient centered health care. The time is now to evolve with this revolution.