How dangerous is UV radiation?

ultraviolet (UV) radiation is one type of energy or radiation emitted from the sun. A certain exposure to sunlight is beneficial. For example, sunlight is a good source of vitamin D for the body. However, too much exposure to UV radiation can be dangerous and cause various problems.

One of the dangers that may occur in UV radiation is the skin damage. The skin has three layers, epidermis, dermis and subcutaneous fat. UV exposure can lead to burning, which causes redness, burning and pain into the layer of the skin epidermis. UV rays can also penetrate the dermis, which is a deeper layer of skin. This can cause damage to cell membranes and can lead to skin cancer. All three types are associated with exposing the sun. Cancer of basal and spinocellular cells tends to be localized and is less severe than melanoma, the deadliest type of skin cancer.

Although not fatal, other skin changes can be caused by UV radiation. UV light contributes to the aging of the skin, includingWrinkles and lines. It can also cause brown spots and dry skin.

The danger of UV radiation is not limited to the skin. Too much exposure to UV radiation can cause a condition known as photoceratitis, which is the burns of the cornea in the eye. The condition causes pain but usually not permanent damage. However, the damage is too large by the UV exposure to the UV radiation is considered to be a risk factor for the development of cataracts, which is a serious condition of the eyes that can lead to blindness.

There are ways to reduce the risk of UV radiation. The UV Index is an evaluation system developed to inform the public about the intensity of UV rays on a given day at any place. The index evaluates the power of the UV rays on a scale of one to ten and states how many minutes of solar exposure to the burning. It provides an estimate to help people assess how long they can stay safely in the sun. The index is published in the newspaper and broadcast in many television newsthe news.

In addition to being aware of the UV index, individuals can protect themselves from the danger of UV radiation by avoiding when the rays are the strongest. This is usually between 10:00 and 15:00. SPF 15 to 30 sunscreen should be applied before plotting. Sunglasses and wide -edge hats can also block UV rays.