The Science of Free Radicals

By Dr. Jerimiah Crossderd
To really grasp what a free radical is, you must look at at it from a chemical level of cells and molecules. Here's a quick chemistry lesson: The chemical composite of the human body is comprised of different types of cells.

Cells are comprised of various types of molecules. Molecules consist of one or more atoms of one or more elements held together by a chemical bond.

Atoms are made up of a nucleus, protons, electrons, and neutrons. The number positively charged particles (protons) in the nucleus of the atom is what determines how many negatively charged particles (electron) will surround the atom.

The role of electrons is they are involved in the chemical reactions and is the compound the bonds the atoms to form molecules. The electrons surround an atom in one or more shells.

When two electrons are present, the innermost shell is full. When the firat shell is completely occupied, the electrons begin to fill the second shell and son..

The most significant factor in determining an atoms chemical behavior is the number of electrons in the outer shell.

A substance that has a full outer shell tends not to enter in chemical reactions. Ultimately, atoms seek to reach a state of maximum stability, an atom will try to fill its outer shell by:

Eradicate or pick up electrons to fill or empty the shell

Share electrons with other atoms to complete the outer shell

Atoms regularly complete their outer shells by sharing electrons with other atoms. Sharing electrons allows the atoms that are bound together to satisfy the conditions of maximum stability for the molecule.

Usually when a split occurs, it never leaves the molecule with an odd, unpaired set of electrons. However, when bond does split, free radicals are created--they tend to move and react quickly to other compounds as they begin to attempt to capture as many electrons as they can to achieve maximum stability.

The most common way free radicals attack is by finding the closest molecule that is stable and from there they begin the process of stealing electrons. When the molecule that is attacked starts losing the electrons, it becomes a free radical as well. When this process begins, it creates a chain reaction in which the end result is a disruption of a living cell.

Free radicals will frequently arrive during metabolism and sometimes the body will even produce them to fight off viruses and bacteria. Free radicals also come from pollution such as radiation, cigarette smoke, and pesticides.

Typically, the body is able to handle free radicals, but if antioxidants are unavailable, or if the free-radical production becomes excessive, damage can occur. Most importantly is that free radical damage accumulates with age.
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