By : Odleen
1. Free Radical Damage
The most widely understood factor in the ageing of all tissues is the free radical ageing theory. Free radicals are highly reactive molecules that are produced during metabolic processes in the body. Basically they are chemically unbalanced molecules that are desperately seeking an electron to make them chemically stable. They really aren’t fussy blighters at all. They will nick one from anywhere. They collide into cells and barge in and steal electrons at any given opportunity. This collision causes the cells in tissues to become damaged. Free radicals can also cause damage to the DNA code of a cell which will affect the way in which it reproduces. This can result in tissues slowly degrading as their genetic code becomes more obscured.
2. Collagen Cross Linking
One element that is not discussed anywhere near as widely as it should be is the impact that our high carbohydrate modern Western diet will have upon the ageing of the skin. Apart from this diet obviously being devoid of micronutrients and antioxidants, and being high in free-radical-forming components, it is also causing havoc to our blood sugar. The body’s response to this is to release the hormone insulin, which encourages cells in the body to suck up this sugar as rapidly as possible, because if blood sugar levels remain high it can be life threatening. When there is a sudden rise in blood sugar, the skin doesn’t get away untouched. A type of reaction takes place called a glycation reaction. This causes a rigid material to “cross link” collagen and elastin fibres. This means it fuses the two together in such a way that they lose their ability to stretch, essentially making them brittle. -The Clear Skin Cookbook