Free-Radicals - What They Are and How They Work

Most of us probably remember the term "freeDesperate and unstable, free radicals do
radicals" from our high school chemistry class, awhatever it takes to capture the electron they
class we used more as a way to pass notes toneed to stabilize themselves. This desperation and
our friends and less as a way to learn about theinstability causes free radicals to attack nearby
ins and outs of the atom. While free radicals maymolecules. If the molecule under attack loses an
not have been important to us in our teenageelectron, it becomes a free radical and repeats
years, most people find that when age increases,the process. A domino effect then begins and the
our vigilance for personal health must increase asliving cell is harmed.
well. Suddenly, free radicals can be costly and turnEvery person has free radicals in their system;
into something we must care about.there is really no way around them. Some are
Before one can truly understand what a freepart of our metabolism and some are used as
radical is and how it works, a bit of a chemistrydefense mechanisms by our immune system. But,
lesson must take place. Don't worry, this won'tfactors that lie outside the body - such as
hurt a bit.pesticides, tobacco smoke, gasoline fumes, and air
A variety of different living cells make up thepollution - can create free radicals as well. This is
human body. These cells are made up ofwhere anti-oxidants become particularly important.
molecules and these molecules are made up ofIn a person who has ample anti-oxidants, free
atoms. Atoms are made up of a nucleus,radicals are normally fought off and don't leave
neutrons, protons, and electrons. The number ofany permanent damage. In those who don't have
protons, which are positively charged, dictate theanti-oxidants to spare, however, free radicals can
number of electrons, which are negativelycause drastic harm to a person's health.. Viruses,
charged. The electrons - yes, even with theirinfections, and diseases can ensue when the free
negative attitude - are particularly important: theyradicals have no opposition.
orbit around the atom, cause chemical reactions,Luckily, anti-oxidants are leading the free radical
and bond atoms together to forms moleculescounter movement. They lead it by donating their
(which ultimately form cells).electrons and stopping free radicals from needing
Electrons travel around the atom in shells. Theto attack. When the anti-oxidant donates an
inner shell is considered full when it has twoelectron, they don't become free radicals simply
electrons; after two, the electrons begin to fill thebecause they have the ability to remain stable in
other shells. The outer shell - and how manya variety of states.
electrons are in it - is the biggest factor inEssentially, anti-oxidants are the police force of
determining the atom's chemical behavior.the human body: they travel around looking for
Atoms, like most of us, aim to find some sort offree radicals and attempting to neutralize them
stability. For this reason, they try to fill their outerbefore they can do any damage to living cells.
shell by gaining or losing electrons, or bonding withThis makes consumption of anti-oxidant
other atoms and sharing electrons. Once thisproperties - such as fruit, vegetables, wine, and
bonding takes place, a molecule is formed.anti-oxidant infused water - particularly important:
Normally, after bonding, all electrons in a moleculethe more policeman you have on staff, the
are paired: there is rarely a lone electron by itself.better chance the bad guys will be caught before
But when this does happen, free radicals form.they begin a damaging crime spree.