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Tanning Bed Time
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Ever since the introduction of
tanning beds in the 1980's, there has considerable
controversy swirling around them. The ongoing debate focuses
on the premise that there really is no such thing as a safe
tan. There is now a consensus among medical experts that
leans towards the belief that no tan is actually a good tan.
Tanning is actually a sign of skin damage and can contribute
to melanoma--a common form of skin cancer.
The debate between opponents and proponents of tanning beds
centers on whether the tanning beds are better or worse than
simply lying out in the sun. The difference between the two
is reflected when we look at ultra-violet (UV) ray exposure.
There are three typs of UV rays, two of which are involved
in the tanning process. Ultraviolet A rays (UVA) comprise
most of the sun's natural light. They penetrate deep into
the skin at a rapid rate and are the major rays used in
tanning beds. Ultraviolet B rays (UVB) are the major cause
of sunburn since they are 1000 times stronger than UVA rays.
Ultraviolet C rays (UVC) are a form of short-wave radiation
and are blocked by the Earth's atmosphere so they play no
role in the tanning process.
Tanning beds work as well as they do simply because they
concentrate the exposure of UVA rays, causing the rays to
penetrate the skin more deeply and at a faster rate the
sun's own rays. Consequently, people can obtain a tan in a
much shorter amount of time.
For valuable, helpful and useful information about
everything concerning
tanning beds, both pro and con just browse this site. |
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