According to experts at the Mayo Clinic Women's HealthSource has announced that psoriasis may be related to arthritis and cardiovascular disease, and that the underlying link between such conditions might be chronic inflammation.

While this may not seem like news, since it has long been suspected that such a connection exists, this is one of the first published articles to make such a direct claim from a scientific view. According to the article, ultraviolet light (UV or UVB) slows the rapid growth of skin cells… sometimes used alone, or in combination with other treatments.

Plenty of UVBioTek customers are able to back up this "discovery", as they have successfully been treating their psoriasis systemically through full body UVB exposure alone. 

http://www.upi.com/Health_News/2010/01/04/Psoriasis-may-be-a-systemic-disease/UPI-16491262648576/