Sunday, January 27th, 2013
Sun and its influence 1. The influence of solar radiation. Sunburn: helpful or harmful? Everyone wants to be beautiful, young and healthy. As to achieve this? Without sunlight there is no life. The sun's rays are necessary for healthy human existence on a daily basis: for learning and further processing of vitamins D, E, ascorbic acid, fats, proteins, minerals, they are normally help fight seasonal depression. Sunlight in the body increases production of so-called "hormone of happiness." In this case tan looks wonderful, he is young and gives a sporty look, so it is very popular as an aesthetic factor. On the other hand, UV rays: * contribute to premature aging of the skin due to phototoxic (oxidative) stress, the skin loses its elasticity, becomes thin and wrinkled, with * excessive use can cause skin infections * after the end of insolation tan quickly disappears.
Negative effect of UV radiation can also be a fotodermatity – vigorous inflammatory response skin blistering, exacerbation of chronic illnesses, relapses of herpes, even the appearance of benign and malignant tumors. How to reconcile these contradictions? The influence of UV rays, especially in large doses, causes phototoxic effects (oxidative stress), forming a huge amount of damaging free radicals our cells to which the natural antioxidant system of the person is unable to cope. Free radicals – is highly active particles that constantly attack cells and damage their DNA, proteins and fats. They occur in the human body, causing oxidative damage of cells. They are directly related to accelerated aging of cells.
Antioxidants neutralize free radicals and act as a protective system for the cells. Exogenous antioxidants can be obtained from food, such as 5 servings of fruits and vegetables a day. Last studies, however, show that the average person uses less than 3 servings per day. Sonne good source of antioxidants are dietary supplements. Special balanced formula to supplement Nature Tan provides body with the necessary materials for a healthy tan.