A variety of abbreviations exist to designate the applicable certifications, specialties and education of nurse practitioners. General Abbreviation The general abbreviation for nurse practitioners is NP. A general nurse practitioner has completed at least a bachelor degree and has a license to work as a registered nurse (RN) in her home state. Additionally, she has at least two years experience practicing as an RN and has completed a masterâs degree and additional training.
Long-term sunlight exposure is known to be associated with the development of skin cancer, skin aging, immune suppression, and eye diseases such as cataracts and macular degeneration. Short-term over-exposure is the cause of sunburn, snow blindness, and solar retinopathy.
How to Produce Melanin in Your Body. Melanin is a natural substance which occurs in the body to create the pigment in our skin, hair and the iris of our eyes. Moreover, it protects the skin from UV rays and, when levels rise, our dermis darkens to give us that desirable suntan.