Ozone layer depletion reduces the atmosphere’s natural protection from the harmful ultraviolet (UV) radiation from the sun. The harmful skin effects from over-exposure to ultraviolet (UV) radiation are classified into two; chronic and acute. This presentation provides an overview of UV rays and their effects on the skin. Understanding these risks and taking precautions will assist you to enjoy the sun while decreasing your chances of sun-related skin problems. Here we go:
Causes Skin Cancer
Ultraviolet radiation is an environmental, human carcinogen. It’s the most universal and prominent cancer-causing agent in the world. Different types of skin cancer include melanoma, squamous cell carcinoma, and basal cell carcinoma. It’s believed that over-exposure causes these types of skin cancer to the sun. Research indicates that UV radiation causes about 90 percent of skin cancers.
Destroys Immune System
Over-exposure to UV rays suppresses the immune system. Research indicates that sunburn may interfere with the function and distribution of disease-fighting white blood cells for about 24 hours after exposure to the sun. Also, over-exposure to the sun may cause more damage to the immune system of your body. It’s your immune system that defends your body against parasites, bacteria, toxins, microbes, and viruses. You may see how it’s active by having a look at how living things decay when they die and their immune system stop functioning.
UV radiation boosts the aging process of the skin because it damages the connective tissue and collagen beneath the top layer of the skin. This causes loss of skin elasticity, wrinkles, and brown “liver” spots. Often, the top side of the arm is over-exposure to the sun and shows greater damages by the sun. And because skin photo-aging is cumulative, it’s never late for you to start a sun protection program.
Over-exposure to UV rays damages tissues of the eyes and can cause “burning” of the eye surface, known as “snow blindness.” Even though the effects disappear within a couple of weeks, they may cause further complications in your life. In 1998, the Journal of the American Medical Association reported that low sunlight amounts can increase the risk of developing cataracts. Note that UV rays damages to the eyes are cumulative; therefore, it’s never too late to start protecting your eyes.
UV rays burn the skin, and sunburn occurs when skin cells are damaged. Sunburn is also called erythema. It’s redness of the skin, which is due to alleviated blood flow in the skin when UV rays dilate the superficial blood vessels in the dermis. Also, exposure to high UV radiation intensities can result in blistering, edema, peeling of the skin, and pain a few days after exposure. It’s believed that UV radiation is the major factor responsible for sunburn.