Tuesday 5 June 2012

Oxidative Stress: Return To High College Chemistry

We all have too many stress in our lives. Stress from our job or school, our families, our corporate life. How about stress from traffic or public transportation? Or that neighbor's dog that barks all night?There's another kind of stress that is silent, but it causes all kinds of trouble. It's called oxidative stress and it takes location in your cells. To understand oxidative stress, you have knowledge of to leave return to high college chemistry.



You can do not forget that different kinds of atoms like hydrogen, oxygen, carbon, and so on have different numbers of protons, neutrons and electrons. The many protons equals the many electrons, and protons and neutrons clump together to shape the nucleus of an atom. The electrons sort of orbit around the nucleus, arrayed in different life levels. Smaller atoms, for example hydrogen, only have one life level; huge atoms have multiple levels. Each life position has a sure many electrons it can hold.



If the atom has the maximum many electrons in its outermost layer, it is stable, non-reactive or inert. Helium, neon, argon, krypton, xenon and radon are inert atoms. If there exists fewer than the maximum many electrons within the outermost life level, the atom tends to seek other electrons. Atoms shall team together, or bond, if the many electrons in their outermost grades done a maximum many electrons. Groups of atoms bonded together are molecules.



Breaking bondsWhen some molecules interact with sure other molecules, they shall hold a chemical reaction. The bonds between electrons within the original molecules are broken and new bonds are formed with the new molecules, causing changes in their physical and chemical properties. There exists all kinds of chemical reactionsfires and explosions return to mindbut one regarding the highest many common reactions is oxidation. In chemical reactions, there is always a balance regarding the loss and gain of electrons. Oxidation occurs when a molecule accepts electrons whether oxygen is involved within the reaction or not, and the original molecule is the oxidant.



The molecule that transfers or donates the electrons is spoke about to be reduced, and should be called the reductant, or sometimes an antioxidant. The pair of an oxidizing and reducing agent that are involved in a critical reaction is called a redox pair. Oxidation and reductionOxidation shall be as simple as rustingin which iron molecules react with oxygen molecules to recombine as ferrous oxidewhich is more stable than neither oxygen or iron. Oxidation should possibly take location with large, complex molecules. Within the very huge molecules that make up living things like humans, oxidation shall be caused by normal processes for example digestion, respiration or exercise.



Oxidation also occurs due to the fact that of outside influences for example the sun's rays, pollutants, other chemicals, and so on. When these molecules lose electrons to grow to oxidants, they grow to unstable and eventually the cell or whatever they can be component of shall be damaged. Sometimes the unstable molecules are called free radicals. Fortunately, there exists other molecules, the reductants or antioxidants, that can donate electrons, returning stability to the molecule. The body tends to hold a balance between the molecules that lose electrons and those that donate them back.



But sometimes there exists just too many causes for the molecules to lose electrons and not enough regarding the donor molecules. This conclusions in an overabundance of oxidized molecules, leading to oxidative stress.

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