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Just because an ingredient is labeled "natural" doesnít mean itís safe. Many plants and plant extracts can cause harmful health effects ranging from mild irritation to even death.
Research Process

Research Basics:
What is biomedical research? Looking at a breakdown of the terms according to the Webster’s Dictionary, we find “bio" meaning “life or living organism,” “medical” meaning “healing; pertaining to the science, study, or practice of medicine, or the art of healing diseases,” and “research” meaning “careful, patient, systematic, diligent inquiry or examination in some field of knowledge, undertaken to establish facts or principles.” In simplified terms, we can understand from these definitions that biomedical research is the search for ways to heal living organisms such as humans and other animals.
Types of Research:
Experimental design profoundly influences the outcome of a research study and is, therefore, extremely important. The first step in designing an experiment is identifying and clearly defining the question or problem to be studied. The objectives of the research study must be realistic, in other words, they must be achievable. The next step is to choose the research model that is best suited for the experiment. The model may be a culture of animal or bacterial cells, or a whole animal of a particular type.

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Are researchers using more and more animals every year?
The number of animals used in research has actually declined in the past 20 years. As technology advances, researchers are able to rely on computer models and other methods instead of animal testing. Some estimates show a reduction in animal use as high as 50 percent. Since 1967, the number of cats used in research has dropped 66 percent.