A disease is an
abnormal condition affecting the body of an organism.
It is often
construed to be a medical condition associated with specific
symptoms and signs.
It may be caused
by external factors, such as infectious disease, or it may
be caused by internal dysfunctions, such as autoimmune
science, also known as anti-aging medicine, experimental
gerontology, and biomedical gerontology, is the study of
slowing down or reversing the processes of aging to extend
both the maximum and average lifespan.
in this area, and "life extensionists" or "longevists"
injury (MI, not to be confused with myocardial infarction)
refers to damage of muscular or skeletal systems, which is
usually due to a strenuous activity.
In one study,
roughly 25% of approximately 6300 adults received a
musculoskeletal injury of some sort within 12 months of
which 83% were activity-related.
When the sperm
fertilizes the egg, the first creation is a stem cell.
divides into more stem cell which continue to divide until they
begin to differentiate (or change), becoming specific types of cells
that will go on to form all of the different parts of the body.
These are the embryonic stem cells that are the focus of the media's