Sundicator.net

Tan, sunburn, aging, acne and skin cancer are all the results of getting exposed to the sun rays. In fact most of us are only concerned about tan protection and sunburn, which are caused by UVB. But the more dangerous is the UVA. …

Understanding UV rays.  Today we all know that UV rays are harmful to all skin types. But did you know that the rays themselves have types that hurt the skin in various degrees? Well it is so. “There three types of UV rays UVA, UVB, and UVC. UVA rays reach the earth most, and are cause of most skin allergies. Their levels remain constant throughout  the year. UVB rays case sunburns, and tans. Their levels generally increase during summer. Most dangerous type is the UVC , but they get blocked by our earth’s ozone layer,” says Dr  Parikh.

In fact UVA rays comprise of 95 percent of the radiation that reaches the earth. They are on earth all year long, in winter and in summer, Their levels do not vary a lot contrary to UVB, which are more present in summer. UVA rays can actually penetrate glass windows. These are the rays that batter our skin the most. UVB make for only 5 percent of the rays, and are prominent during the hotter months.

The harmful effects
As little as 20 minutes of incidental sun exposure everyday adds up to more than 120 hours of UV radiation per year. That equals nearly 6 hours of serious sun bathing. Whether exposed for five  minutes or five hours of serious sun bathing. Whether exposed for five minutes or five hours, incidental amount s of sun exposure can contribute to lines and wrinkles, alterations in the skin’s natural defense system, skin discolorations and uneven skin tone.

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