Ultraviolet and brown radiation

Ultraviolet radiation, in the electromagnetic spectrum, lies under the violet color of the visible part of the spectrum. Some examples of the many applications: in the detection of mineral samples – in the use of a property called fluorescence – to study the molecular structure, in the sterilization of the surgical material, in therapeutic applications … The low frequency ultraviolet radiation) by the long golf lend Energy levels. The highest frequency can cause some atoms to lose electrons and become ions (ionization). When it occurs, the molecule that contains that atom experiences a change in its function.

Now let’s see that it happens in our skin when the ultraviolet radiation that comes from its sun influences. We will distinguish two frequency strikes. The highest frequency is called UVB (ultraviolet radiation from biological frequency). The lowest frequency – therefore of less energy – is called grapes. UVB only quickly crosses the upper layers of the epidermis and bronze. If the dose is very high, the skin becomes red and inflamed. It produces what a solar fire wound is called that, when repetitive, can generate chronic skin lesions. If sun exposure is too long, the risk that DNA repair processes will not work properly and damage becomes irreversible. When this happens, important gene mutations make cells malignant and activate skin tumors. Non-melanoma, safe and in terms of melanoma there is still no definitive evidence.

The grape reaches the dermis, which means that it reaches the deepest layers of the skin. This ultraviolet radiation takes little part in burns, but damages the connective tissue under the epidermis. This damage causes the skin to lose its tone and appear prematurely aging and wrinkles, it is what is called photo-daño because it is produced by photons. UVB contributes to biological damage with 80% and grapes with 20%. Fortunately for human life, the ozone of the high layers of the atmosphere absorbs a large part of the UVB, so that the UVB is only 5% of the ultraviolet radiation that comes from the sun on a summer day. That is why it is important to eliminate those human activities that reduce the thickness of the ozone layer.

We all know, because it is a usual recommendation that ultraviolet radiation generates vitamin D3, fundamentally for strengthening our bone system. But this effect is achieved with exposure times approximately 20 minutes a day. For longer exposure, especially in the summer, it is essential to protect yourself with sufficient creams. These creams prevent both UVB and grapes, to produce permanent damage in the local skin immune system and in the genetic material of skin cells and therefore make tumor processes possible.