In the normal course of metablism,your body produces
small,high-energy particles that have a single electron in
their outer shell (such moleules are unstable because
electrons prefer to be paired.) These are called free
radicals, and they can be very damaging in their search
for another electron. Free radicals derived from oxygen are
the most abundant and damaging of the species.These free
radicals are normally channeled into energy production. In
some cells they may be used as the weapons to kill viruses
and bacteria. Unfortunately, if too many of them are
produced, their extremely high energy can also be damaging
to normal tissue. Free radicals disrupt the normal
production of DNA, the genetic material, and alter the
lipids (fats) in cell membranes. They also affect the blood
vessels and the production of prostaglandins. (
Prostaglandins are hormone-like substances that regulate
many physiological functions, and their production is very
sensitive to many metabolic influences.)
We are also exposed to free radicals that are found in the
environment or generated by exposure to environmental
chemicals. There are many sources of excess free- radicals
exposure, including cigarette smoke; air pollution; some
highly processed foods and food additives; ultraviolet
sun-light and radiation; processed oils such as commercial
vegetable oils, margarines and shortening;char-broiled
foods and any charred or burned foods; heavy metals ( lead,
cadmium,aluminum,and mercury) found in processed food;
excessive iron; pesticides; and some subscription
medications. Many of the chemicals found in municipal water
supplies are toxic because they generate free radicals. It
is good to drink a lot of water but to avoid tap water as
much as possible.Recently, it has been confirmed that
excessive accumulation of iron, common in meat-eating
populations, may be a highly significant risk factor in
development of heart disease, although not as important as
smoking. This is probably due to this transition metal
being a generator of free radicals. Therefore, it is also a
probable risk factor for cancer. Unless you have a
demonstrated need for iron, it is a good idea to avoid
supplements that contain it, although these studies were
not done with iron supplements. By careful lifestyle
choices some of these free radicals sources can be avoided
and others can be counteracted. By making these choices for
yourself you can slow down the aging process,decrease the
risk of cancer and heart disease and promote high energy
and vital, healthy feeling of well-being. One way to
protect yourself from free-radicals is to take dietary
supplements.
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Billy Vaughn
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