Medicine is a subject that deals with various diseases or pathological changes in life and promotes the rehabilitation of patients. Medicine, English medicine, is a science that deals with the problems related to the good state of human physiology in the definition of human health, aiming at treating and preventing physiological diseases and improving the level of human physiological health. Medicine in a narrow sense is only the treatment of diseases and the recovery of effective body functions, while medicine in a broad sense also includes China's regimen and western nutrition derived from it.
There are two major medical systems in the world: western micro-western medicine and eastern macro-Chinese medicine. The scientific nature of medicine lies in the application of basic medical theories, such as biochemistry, physiology, microbiology, anatomy, pathology, pharmacology, statistics, epidemiology, traditional Chinese medicine and Chinese medicine skills, to treat diseases and promote health.
Chemistry defines the word "chemistry" in Chinese, which, if interpreted literally, is a "changing science". Chemistry, like physics, is the basic science of natural science.
Chemistry is a natural science based on experiments. Mendeleev's periodic table of chemical elements greatly promoted the development of chemistry. Nowadays, many people call chemistry "central science" because chemistry is the core of some scientific disciplines, such as materials science, nanotechnology, biochemistry and so on.
Chemistry is a natural science that studies the composition, structure, properties and changing laws of substances at the atomic level, which is also the core basis of chemical changes.
There are five and two disciplines in modern chemistry: inorganic chemistry, organic chemistry, physical chemistry, analytical chemistry and polymer chemistry.