What are tanning beds?
Tanning beds were introduced to North America by German scientist Friedrich Wolff in 1978 and began to become popular in the mid-1980s. Since then, tanning beds have been a common way to tan without having to spend hours in the outside sun. From www.wikipedia.com, they give the definition of a tanning bed to be “Also known as a sunbed, a tanning bed is a device emitting ultraviolet radiation (usually UVA, but recently also UVB) used for cosmetic reasons (to induce an artificial tan).” On an average, more than a million Americans use the nations 50,000 tanning facilities (DeNoon, 2006). Sunlight is composed of electromagnetic radiation of varying wavelengths, ranging from the long-wavelength infrared light to the short-wavelength ultraviolet. The ultraviolet light is further subdivided into UVA and the even shorter-wavelength UVB radiation. Although UVB causes sunburns, it is also the component that initiates Vitamin-D production in the skin (Holick, 2004). Why do we need Vitamin D? Vit
