Elements of Destruction to the Body Explained
To understand the way that free radicals and antioxidants interact, you must first understand a bit about cells and molecules. This is a quick course in Physiology/Chemistry lesson: The human body is composed of many different types of cells.
Cells are composed of many different types of molecules. Molecules consist of one or more atoms of one or more elements joined by chemical bonds.
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.
Electrons are responsible for the chemical reactions that take place inside the atom as well as the substance that holds the atom together to form molecules. Electrons orbit 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 single most important feature in determining the chemical behavior of an atom is how many electrons are contained in the outer shell.
An atom that has a full outer shell does not enter in chemical reactions. Atoms seek to reach a state of maximum stability by one of the following:
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.
Normally, bonds wont split in a way that leaves a molecule with an odd, unpaired electron. But when weak bonds split, free radicals are formed--free radicals are very unstable and react quickly with other compounds, trying to capture the needed electron to gain 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.
The body usually defends these free radicals well, however when antioxidants are not available or free radical damage becomes too excessive, cell damage can occur. The most significant importance to this free radical damage is that it accelerates the aging process in humans - 17273
Cells are composed of many different types of molecules. Molecules consist of one or more atoms of one or more elements joined by chemical bonds.
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.
Electrons are responsible for the chemical reactions that take place inside the atom as well as the substance that holds the atom together to form molecules. Electrons orbit 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 single most important feature in determining the chemical behavior of an atom is how many electrons are contained in the outer shell.
An atom that has a full outer shell does not enter in chemical reactions. Atoms seek to reach a state of maximum stability by one of the following:
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.
Normally, bonds wont split in a way that leaves a molecule with an odd, unpaired electron. But when weak bonds split, free radicals are formed--free radicals are very unstable and react quickly with other compounds, trying to capture the needed electron to gain 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.
The body usually defends these free radicals well, however when antioxidants are not available or free radical damage becomes too excessive, cell damage can occur. The most significant importance to this free radical damage is that it accelerates the aging process in humans - 17273
About the Author:
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