The science bit
The Photobiological effect of light therapy.
Increase
vascular efficacy (circulation) by increasing the formation of new
capillaries, which are additional blood vessels that replace damaged
ones. New capillaries speed up the healing process by carrying more
oxygen as well as nutrients needed for healing and they can also carry
more waste products away.
Stimulate the production of collagen.
Collagen is the most common protein found in the body.Collagen is the
essential protein used to repair damaged tissue and to replace old
tissue. It is the substance that holds cells together and has a high
degree of elasticity. By increasing collagen production less scar tissue
is formed at the damaged site.
Enhances release of nitric oxide.
This gas is an important signaling messenger molecule in the body of all
mammals that is involved in many physiological and pathological
processes.
Stimulate the release of adenosine triphosphate (ATP). ATP
is the major carrier of energy to all cells. Increases in ATP allow
cells to accept nutrients faster and get rid of waste products faster by
increasing the energy level in the cell. All food turns into ATP before
it is utilised by the cells. ATP provides the chemical energy that
drives the chemical reaction of the cell.
Increase lymphatic system
activity. Edema, which is the natural splinting process of the body, has
two basic components. The first is a liquid part which can be evacuated
by the blood system and the second is comprised of the proteins which
have to be evacuated by the lymphatic system. Research has shown that
the lymph vessel diameter and the flow of the lymph system can be
increased. This means that both parts of the edema (liquid and protein)
can be evacuated at a much faster rate to relieve swelling.
Increase RNA and DNA synthesis. This helps damaged cells to be replaced more promptly.
Reduces
the excitability of nervous tissue. The photons of light energy enter
the body as negative ions. This calls upon the body to send positive
ions like calcium among others to go to the area being treated. These
ions assist in firing the nerves thereby relieving pain.
Stimulate
fibroblastic activity which aids in the repair process. Fibroblasts are
present in connective tissue and are capable of forming collagen fibers.
Increase
photocytosis, which is the process of scavenging for and ingesting dead
or degenerated cells by phagocyte cells for the purpose of clean up.
This is an important part of the infection fighting process. Destruction
of the infection and clean up must occur before the healing process can
take place.
Stimulate tissue granulation and connective tissue
projections, which are part of the healing process of wounds, ulcers or
inflamed tissue.
Stimulate acetycholine release. Acetycholine causes
cardiac inhibition, vasodilation, gastrointestinal peristalsis and other
parasympathetic effects.