 
       
WHAT IS STEM CELL RESEARCH AND WHAT CAN
IT DO FOR YOU? WHAT ARE CELLS? Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth.
In addition, in many tissues they serve as a sort of internal repair system, dividing essentially without limit to replenish
other cells as long as the person or animal is still alive. When a stem cell divides, each new cell has the potential either
to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood
cell, or a brain cell. Stem cells are distinguished from other cell types by two important characteristics. First, they
are unspecialized cells capable of renewing themselves through cell division, sometimes after long periods of inactivity.
Second, under certain physiologic or experimental conditions, they can be induced to become tissue- or organ-specific cells
with special functions. In some organs, such as the gut and bone marrow, stem cells regularly divide to repair and replace
worn out or damaged tissues. In other organs, however, such as the pancreas and the heart, stem cells only divide under special
conditions.
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 An adult stem cell is thought to be an undifferentiated cell, found among differentiated cells in a tissue or organ that can renew itself and can differentiate to yield some
or all of the major specialized cell types of the tissue or organ. The primary roles of adult stem cells in a living organism are to maintain and repair the tissue in which they are found. Scientists also use the term somatic stem cell instead of adult stem cell, where somatic refers to cells of the body. THE REASON THAT'S GOOD NEWS IS NOW THE AGING
PROCESS CAN BE SLOWED DOWN IN A WAY AS NOT TO AGE RAPIDLY
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