Healthy Eating
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Free Radicals - The Secret to Anti-aging and Disease Prevention?By Craig Burton Founder 3d Personal Training Systems www.3dpts.com All disease is caused by free radicals. - Dr. Sherry Rogers MD a leading figure in family and environmental medicine. In 1956, Denham Harmon MD., PHD, proposed his free radical theory of aging. According to this theory, the aging process involves molecular and cellular injury caused by free radicals. This theory remains strong today with free radicals and antioxidants still the current buzz word in the field of anti-aging, and to a lesser note, disease prevention. So without this article turning into a complicated and very boring chemistry and physiology lessen, lets see if we can get to the heart of it by addressing the following:
What are Free Radicals and how are they formedA free radical is a hungry naked electron (1). How are free radicals formed? Basically the nucleus of an atom is surrounded by a cloud of electrons. These electrons surround the nucleus in pairs but occasionally an atom loses an electron, leaving the atom with an "unpaired" electron; a free radical also known as reactive oxygen species (ROS) (1). Free radicals are very unstable and react quickly with other compounds, trying to capture the needed electron to gain stability. Generally, free radicals attack the nearest stable molecule, "stealing" its electron. When the "attacked" molecule loses its electron, it becomes a free radical itself, beginning a chain reaction. Like a game of dominoes once the process has started, it can cascade, finally resulting in the disruption of a living cell. (2). When free radicals kill or damage enough cells in an organism, the organism ages. Dr. Harmon launched his theory by showing for the first time that feeding a variety of antioxidants to mammals extended their life spans. (3) Some free radicals arise normally during metabolism. Sometimes the bodys immune systems cells purposefully create them to neutralise nasty bugs like viruses and bacteria. Candida that sneaks through into the blood stream is one target, however, environmental factors such as pollution, radiation, cigarette smoke and herbicides can also spawn free radicals. We inhale over 500 environmental chemical every day just in the average home (1). Normally, the body can handle free radicals, but if antioxidants are unavailable, or if the free-radical production becomes excessive and leaves our arsenal deficient and unable to detoxify the next chemical attack then damage occurs. Damages lead to symptoms like head aches or mood swings then domino to disease. How Antioxidants May Prevent Against Free Radical DamageAntioxidants act like sponges moping up free radicals and putting out their fires of destruction (1). Antioxidants neutralise free radicals by donating one of their own electrons, ending the electron "stealing" reaction. Only a pair of electrons makes them happy and non-destructive. The antioxidant nutrients themselves dont become free radicals by donating an electron because they are stable in either form. They act as scavengers, helping to prevent cell and tissue damage that could lead to cellular damage and disease. Vitamin C and E are two antioxidants.
How Else Can I Prevent Free Radical Damage?Before you go out and stock your pantry with mega-doses of these vitamins, be warned: more is not always better, and the synthetic versions can be problematic and not absorbed by the body. Your metabolic type also dictates how you are affected by various doses of vitamins as we do not all react the same (I recommend reading the Metabolic typing articles in November and December Peak Performance editions). Here are some initial steps:
ConclusionSo is controlling these free radicals the secret to anti-aging and the prevention of disease? It definitely looks according to current research as being part of the puzzle. But the bottom line is by following those initial steps, without a doubt you are heading in the right direction towards the fountain of youth and a long healthy life.
References (1) Detoxify or die. Sherry Rogers, M.D. Sand Key Company, 2002. (2) www.healthchecksystems.com/antioxid.htm (3) Harmon D. Aging: a theory based on free radical and radiation chemistry. J Gerontol 1956;11:298. www.healingdaily.com/conditions/free-radicals.htm. |