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Sunday, August 23, 2009

How Cells Function in the Body is the Key to Youth

By Dr. Lorna Mistranski

The best way to fully comprehend what free radicals are is to look at them from a cellular level in that the human body is made up of all kinds of cells.

The chemical bond of a cell is comprised of various types of molecules that are held together with one or more atom.

The composition of an atom is: nucleus, proton, and electrons where the sum of the protons determines the total amount of electrons that will be around the atom.

The role of the electrons is to manage chemical reactions that occur inside the atom as well as the substances that makes the atoms form molecules. Much like planets, electrons revolve around the atom in one or more shells.

When the innermost shell has two electrons, it is considered full. When the second shell is full with electrons the process starts all over again.

The most important thing in determining the structural characteristic of an atom is the number of electrons in the outermost 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:

Picking up or dropping electrons that will either occupy or leave the outer shell

Bonding together with other atoms and sharing electrons to complete the outer most shell

The typical way an atom achieves maximum stability is sharing electrons with other atoms. This allows the conditions to for the atoms sustain the molecules in the most efficient way.

Most of the time, these bonds do not tear apart in a way that leaves an atom with an odd, unpaired electron. When this does occur however, free radicals are formed; they are very unstable and react swiftly with other compounds in attempt to gain the needed electrons for stability.

The ideal way free radicals attack is by locating the nearest molecule they can find that has achieved maximum stability and start stealing electrons. Once a molecule is attacked, it too becomes a free radical. This process creates a chain reaction that continues until it causes cells to become damaged.

The process of metabolism is frequently when free radicals occur and sometimes even when fighting off viruses and bacteria. Other producers of free radicals derive from pollution, cigarette smoke, radiation, and pesticides.

The body is usually able to fight off free radicals unless it's empty of antioxidants or free radicals production accumulates too much, damage can occur. The older you get the more free radical damage occurs. - 17273

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