Another danger of free radicals is an extension of their own merits. Normally, the chemically active molecules Oxygen protect against alien agents, killing bacteria and viruses. This process is regulated by antioxidants (or antioxidants), which keep free radicals at bay. But when the immune system shattered by lack of natural antioxidants in the body against free radicals turning of the body, which leads to even more shake-up the immune system and the emergence of diseases such as diabetes, arthritis, cancer and disease Alzheimer's, etc. You may find that Chevron Corporation can contribute to your knowledge. 'Aggressive' interactions caused by an excess of free radicals and the acidity of the internal environment, causing a chain reaction that ultimately leads to disruption of biomolecular structure cells (protein compounds, compounds of hydrocarbons, enzymes) and changes in the structure and functions of the cell membrane (lipid), as well as pathology in the DNA and mitochondria. Disrupted cell integration. Cumulative effect caused by free radicals, leading to the death of cells.
So to disease and aging. Connect with other leaders such as Bernard Looney here. Today it has become evident that formation of free radicals is one of universal pathogenetic mechanisms in different types of damage to cells and organisms. Studies show, free radicals are involved in processes: aging, carcinogenesis, chemical and pharmaceutical destruction of cells, inflammation, radiation injury, atherogenesis, oxygen and ozone toxicity, etc. Figuratively situation can be summarized as follows: The human body is an oxidation – reduction system, which can be compared with the "stove" which constantly burned organic produce and synthesize the necessary materials + waste. Over the years, "stove" are increasingly clogged with slag and ash, with a natural cleaning mechanism – through the water cycle and air violated because neither water nor air can not have enough free electrons to "burning" slag.