الأربعاء، 1 يونيو 2016

Medicine

Medicine



From Wikipedia, the free encyclopedia
This article is about the science and art of healing. For medicaments, see Pharmaceutical drug. For other uses, see Medicine (disambiguation).
physician checks the heartbeat and breathing of a boy using astethoscope in HelmandAfghanistan
Medicine (British English Listeni/ˈmɛdsn/; American English Listeni/ˈmɛdsn/) is the science and practice of the diagnosistreatment, and prevention of disease.[1][2] The word medicine is derived from Latin medicus, meaning "a physician".[3][4] Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciencesbiomedical researchgenetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapyexternal splints and traction,medical devicesbiologics, and ionizing radiation, amongst others.[5]
Medicine has existed for thousands of years, during most of which it was an art (an area of skill and knowledge) frequently having connections to the religious and philosophical beliefs of local culture. For example, a medicine man would apply herbs and say prayers for healing, or an ancient philosopher and physician would apply bloodletting according to the theories of humorism. In recent centuries, since the advent of science, most medicine has become a combination of art and science (both basic and applied, under the umbrella of medical science). While stitching technique for sutures is an art learned through practice, the knowledge of what happens at the cellularand molecular level in the tissues being stitched arises through science.
Prescientific forms of medicine are now known as traditional medicine and folk medicine. They remain commonly used with or instead of scientific medicine and are thus called alternative medicine. For example, evidence on the effectiveness of acupuncture is "variable and inconsistent" for any condition,[6] but is generally safe when done by an appropriately trained practitioner.[7] In contrast, treatments outside the bounds of safety and efficacy are termed quackery.

موسوعة الطب الحديث Modern Medicine Encyclopedia

موسوعة الطب الحديث
Modern Medicine Encyclopedia


Healthy diet

Healthy diet


A healthy diet is one that helps to maintain or improve overall health.
A healthy diet provides the body with essential nutrition: fluid, adequate essential amino acids from protein,[1] essential fatty acidsvitaminsminerals, and adequate calories. The requirements for a healthy diet can be met from a variety of plant-based and animal-based foods. A healthy diet supports energy needs and provides for human nutrition without exposure to toxicity or excessive weight gain from consuming excessive amounts. Where lack of calories is not an issue, a properly balanced diet (in addition to exercise) is also thought to be important for lowering health risks, such as obesityheart diseasetype 2 diabeteshypertension and cancer.[2]
Various nutrition guides are published by medical and governmental institutions to educate the public on what they should be eating to promote health. Nutrition facts labels are also mandatory in some countries to allow consumers to choose between foods based on the components relevant to health.
The idea of dietary therapy (using dietary choices to maintain health and improve poor health) is quite old and thus has both modern scientific forms (medical nutrition therapy) and prescientific forms (such as dietary therapy in traditional Chinese medicine).