What does light therapy actually do?
Light therapy can:
- Increase vascularity (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 more 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.
- 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 utilized by the cells. ATP
provides the chemical energy that drives the chemical reaction of the cell.
- Increase lymphatic system activity. Edema, which is the
swelling or 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 doubled with the use of light therapy. The
venous diameter and the arterial diameters can also be increased.
This means that both parts of 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.
- Reduce 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 phagocytosis, 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.
- Induce a thermal like
effect in the tissue. The light raises the temperature of the cells although
there is no heat produced from the diodes themselves. (The BioPack cluster
will be warm to the touch because of the electronics needed to power the
30 diodes.)
- Stimulate tissue granulation and connective tissue projections,
which are part of the healing process of wounds, ulcers or inflamed tissue.
- Stimulate acetylcholine release. Acetylcholine causes
cardiac inhibition, vasodilation, gastrointestinal peristalsis and other
parasympathetic effects.
See references