A state of complete physical, mental and social well-being and not merely the absence of disease or infirmity
Technology
The branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment, drawing upon such subjects as industrial arts, engineering, applied science, and pure science
Health technology
It is the prevention and rehabilitation, vaccines, pharmaceuticals and devices, medical and surgical procedures, and the systems within which health is protected and maintained
Health technologies are used at every level of the health care system from the simplest to the most advanced
Health technologies form the backbone of the services medicine can offer in the prevention, diagnosis and treatment of illness and disease
Diagnostics
1. Relating to, or used in diagnosis. 2. Serving to identify or characterize; being a precise indication. A device or substance used for the analysis or detection of diseases or other medical conditions
Medical professional in the field of diagnostic medicine
Has the assignment to accurately classify symptoms, detect a patient's disease and to find the best available treatment option for the given illness
Ancient beliefs about illness and disease
Punishment from the gods
Caused by evil spirits and demons
Herbs and plants used as medicine
Priests acted as physicians and treated sick people in the temple
Make up of the body was unknown
Primitive times (4000 BC - 3000 BC)
Illness and diseases were a punishment from the gods
Tribal witch doctors treated illness with ceremonies
Herbs and plants used as medicines (morphine and digitalis)
Trepanation or trephining (surgically removing a piece of bone from the skull)
Average life span was 20 years
Dark Ages (AD 400 - AD 800)
Emphasis on saving the soul and study of medicine was prohibited
Prayer and divine intervention were used to treat illness disease
Monks and priests provided custodial care for sick people
Medications were mainly herbal mixtures
Average life span was 20-30 years
AncientChinese (1700 BC - AD 220)
Believed in the need to treat the whole body by curing the spirit and nourishing the body
Recorded a pharmacopoeia of medications based mainly on the use of herbs
Used therapies such as acupuncture
Began to search for medical reasons for illness
Average life span was 20-30 years
AncientEgyptians (3000 BC - 300 BC)
Physicians were priests
Blood letting or leeches used as medical treatment
Average life span was 20-30 years
Ancient Greeks (1200 BC - 200 BC)
First to observe the human body and the effects of disease led to modern medical sciences
Believed illness is a result of natural causes
Used therapies such as massage, art therapy, and herbal treatment
Stressed diet and exercise as ways to prevent disease
Average life span was 25-35 years
Ancient Romans (753 BC - AD 410)
First to organize medical care by providing care for injured soldiers
Later hospitals were religious and charitable institutions in monasteries and convents
First public health and sanitation systems by building sewers and aqueducts
Galen established belief that the body was regulated by four body humors blood, phlegm, black bile, and yellow bile
Life span was 25-35 years
Middle Ages (AD 800 - AD 1400)
Renewed interest in medical practices of Greek and Romans
Major diseases included smallpox, diptheria, tuberculosis, typhoid, the plaque, and malaria
Arabs began requiring physicians pass examinations and obtain licenses
Average life span was 20-35 years
Hippocrates
Authored code of conduct for doctors known as the Hippocratic Oath that is the basis of medical practice today. Believed illness was not caused by evil spirits and stressed importance of good diet, fresh, air, cleanliness, and exercise
Hippocrates is now known as the "Father of Medicine" due to his hypothesis that nutrition and cleanliness prevents illness and disease
They used herbs and plants as medicines like foxglove plant, quinine, and morphine
The Renaissance
The "Rebirth of the science of medicine"
Artists took strong interest during the Renaissance
Medical thermometer devised by Italian physician Sanctorius
The first diagnostic tool was invented during the Renaissance
Dissection of body led to increased understanding of anatomy and physiology during the Renaissance
Invention of printing press allowed medical knowledge to be shared during the Renaissance
The first anatomy book was published by Andreas Vesalius (1514-1564) during the Renaissance
Anton van Leeuwenhoek
Invented the microscope lens that allowed visualization of organisms
Anton van Leeuwenhoek scraped his teeth and observed the bacteria that causes tooth decay
Developments in the 16th and 17th centuries
Cause of disease still not known, many people died from infections
Invention of the microscope allowed physicians to see disease-causing organisms
Apothecaries (early pharmicists) made, prescribed, and sold medications
Ambroise Pare (1510-1590), a French surgeon, known as the Father of Modern Surgery, established use of ligatures to stop bleeding
Benjamin Franklin invented bifocals and found that colds could be passed from person to person
Developments in the 18th century
Gabriel Fahrenheit (1686-1736) created the first mercury thermometer
John Hunter (1728-1793), established scientific surgical procedures and introduced tube feeding
Ephraim McDowell (1771-1830) performed the first ovariotomy (surgical removal of the ovary) to remove a 22 pound tumor
Edward Jenner (1749-1823) developed a vaccination for smallpox in 1796
Rene Laennec (1781-1826) invented the stethoscope in 1819, the first stethoscope was made of wood
Elizabeth Blackwell (1821-1910) was the first female physician in the United States in 1849
Louis Pasteur
Known as the Father of Microbiology. His germ theory proved that microorganisms cause disease. Proved that heat can be used to destroy germs through a process called pasteurization. Created a vaccine for rabies in 1885. Founded the basic rules for sterilization
Joseph Lister (1827-1912) used carbolic acid on wounds to kill germs, he was the first doctor to use an antiseptic during surgery
Florence Nightingale
Known as the Founder of Modern Nursing. Established efficient and sanitary nursing units during the Crimean War in 1854. Invented the call bell system and use of dumbwaiters to deliver meals. Began the professional education of nurses
Robert Koch (1843-1910) developed the culture plate method to identify pathogens and isolated the bacterium that causes tuberculosis
Clara Barton
Volunteer nurse for wounded soldiers during the Civil War. After Civil War, established a bureau of records to search for missing men. Campaigned for the USA to sign the Treaty of Geneva, which provided relief for sick and wounded soldiers. Formed American Red Cross in 1881 and served as its first president
Rapid advancements in the 19th century due to discoveries of microorganisms, anesthesia, and vaccinations