This is one of the oldest and better researched theories. It is behind many aging changes we usually face.
The Free Radical Theory of aging shows why, depending on our emotional and physiological health, sooner or later we begin noticing aging changes. We see new wrinkles on our faces, more often difficulties to remember some simple things, like where our car keys are or where we left the car itself on the parking lot, and other similar things.
Some of us remember similar events 10 and more years ago and don’t pay much attention. The others – attribute every such detail towards upcoming and progressing aging – often unnecessary stressing ourselves.
However, all of us sooner or later question the actual reasons for these changes, and how to either prevent, or at least slow them down.
The Free Radical Theory of aging refers to atoms, molecules, or ions with unpaired oxygen electrons in their configuration. These unpaired electrons are usually highly reactive and can damage our body’s cells, tissues, cells’ membranes, enzymes and even DNA.
We usually think of oxygen as the ultimate source of life and energy, but it is also the most powerful killing agent in the world, as the Free Radical Theory of Aging demonstrates.
Oxygen can destroy every known bacteria, virus and living organism on earth. It kills living organisms using a process known as oxygenation or “oxygen stress”. You can read more about protecting yourself from harmful bacteria, viruses, parasites and yeast using a very popular in Europe Hydrogen Peroxide Therapy.
Some of us may remember from biology classes that all living things use oxygen to generate energy. Our cells do it too, but they must also protect themselves from oxygen while they make use of it.
What is the Free Radical Theory is about?
According to the Free Radical Theory of Aging, cells use oxygen to dissolve nutrients, but free-radical particles are an unavoidable by-product of this process. These free-radicals are bouncing around the cell, burning (oxidizing) anything they touch, if not neutralized.
One better studied part of free-radicals destructive chain of reactions is in changing the cellular membrane structure so that it is no longer fluid but becomes stiff. This Cellular Membrane structure changing effect was found being so significant that it earned a separate aging Theory status among scientists.
This theory suggests that these cellular changes in a long term cause all our organs and tissues to start failing, and can be looked at as an extension of the Free Radical Theory.
There is plenty of evidence to support this cellular theory and prove it being accurate, but when it comes to defining what specifically makes cell membranes stiffen and lose function over time, it brings all research back to the Free Radical Theory of Aging, which explains actual reasons of these changes.
This process is called lipid peroxidation. High levels of lipid peroxidation products noticed in the Brain of those with Alzheimer’s disease. This destructive process is often called “Membrane Theory of Aging”.
During the course of energy production (metabolism) within the cell, about 3% of the energy is released in the form of free radicals. Some of these radicals help the cell function, and the rest are neutralized by special antioxidants within the cell, according to the Free Radical Theory.
Those free-radicals that are not successfully neutralized, damage the cell. The more of them escape neutralization, the greater the damage.
In general, when metabolism increases, more radicals are produced. Things that heighten the free radical production include:
* excessive exercise * an overactive thyroid * inflammation (fever, infection and other causes) * radiation * certain chemicals
It is also known that high-sugar diets demand higher metabolism and increase production of free-radicals and the risk of getting a number of diseases, including:
* diabetes * neurodegenerative conditions (Alzheimer’s and Parkinson’s) * cancer * heart diseases/attacks * strokes * atherosclerosis
There is growing evidence that chronic, ongoing inflammation is a major cause of our aging. Where there is inflammation there is massive generation of free radicals and lipid peroxidation products (caustic fats) that are flooding the body — every organ and tissue. They always go together.
These nasty particles and caustic fats not only destroy parts of cells, they also destroy the glue that holds us together — our ligaments, bones, joints, and connective tissue of our skin (causing wrinkles).
Outside sources of free-radicals
Unfortunately, internal processes are not the only source of free-radicals we have to deal with. Even in an average environment each air inhale we make brings in about 1 million free-radicals for our immune system to neutralize.
In polluted areas, near high voltage power lines, radio transmitters, chemical or other heavy manufacturing plants we deal with much higher numbers. We also need to be careful with many advanced technological “creations” our civilization brings to our every day life – computers, TV sets, and one of the worst – Microwave ovens.
A role of our immune system
The good news is that our immune system uses an internal multi-layered antioxidant system to protect us against free-radicals. It’s called the "internal antioxidant network". Within all body cells there is a group of antioxidant enzymes -
* superoxide dismutase * glutathione peroxidase * catalase, etc, whose job is to neutralize free-radicals.
In addition, all cells contain a very powerful free-radical fighter known as glutathione, which can neutralize almost any type of free radical and exists in a supplement form.
People with more powerful internal antioxidant enzymes network and high levels of glutathione are better protected against a large number of diseases, including -
* cancer * neurodegenerative conditions * diabetes * heart attacks and strokes, as well as * damage from chemicals and * radiation.
Obviously, these individuals age more slowly than others.
If we don’t belong to the above “lucky” group, we can rely on another good news, that many nutrients in supplemental form can increase levels of both antioxidant enzymes and glutathione in cells. These nutrients include -
* Glutathione * Acetyl-L-carnetine * N-Acetyl Cysteine * Ascorbate * Melatonin * Curcuminand numerous Flavonoids from vegetables and fruits.
We can better than any doctor read our body and evaluate surrounding us environment.
As a result we can decide if our internal “antioxidant network” needs our help and above nutritional support. We can find a collection of high performance natural antioxidants and Anti Aging Supplements in many good Health Food Stores.
In addition to listed above factors and health conditions affecting our aging process, all of us need to be concerned with a power and aging of our Brain.