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2009-07-29 06:18:42
By MARIA CHENG, AP Medical Writer Maria Cheng, Ap Medical Writer 1 hr 44 mins
ago
LONDON International cancer experts have moved tanning beds and other sources
of ultraviolet radiation into the top cancer risk category, deeming them as
deadly as arsenic and mustard gas. For years, scientists have described tanning
beds and ultraviolet radiation as "probable carcinogens."
A new analysis of about 20 studies concludes the risk of skin cancer jumps by
75 percent when people start using tanning beds before age 30. Experts also
found that all types of ultraviolet radiation caused worrying mutations in
mice, proof the radiation is carcinogenic. Previously, only one type of
ultraviolet radiation was thought to be lethal.
The new classification means tanning beds and other sources of ultraviolet
radiation are definite causes of cancer, alongside tobacco, the hepatitis B
virus and chimney sweeping, among others.
The research was published online in the medical journal Lancet Oncology on
Wednesday, by experts at the International Agency for Research on Cancer in
Lyon, the cancer arm of the World Health Organization.
"People need to be reminded of the risks of sunbeds," said Vincent Cogliano,
one of the cancer researchers. "We hope the prevailing culture will change so
teens don't think they need to use sunbeds to get a tan."
Most lights used in tanning beds give off mainly ultraviolet radiation, which
cause skin and eye cancer, according to the International Agency for Cancer
Research.
The classification of tanning beds as carcinogenic was disputed by Kathy Banks,
chief executive of The Sunbed Association, a European trade association of
tanning bed makers and operators.
"The fact that is continuously ignored is that there is no proven link between
the responsible use of sunbeds and skin cancer," Banks said in a statement. She
said most users of tanning beds use them less than 20 times a year.
But as use of tanning beds has increased among people under 30, doctors have
seen a parallel rise in the numbers of young people with skin cancer. In
Britain, melanoma, the deadliest kind of skin cancer, is now the leading cancer
diagnosed in women in their 20s. Normally, skin cancer rates are highest in
people over 75.
Previous studies found younger people who regularly use tanning beds are eight
times more likely to get melanoma than people who have never used them. In the
past, WHO warned people younger than 18 to stay away from tanning beds.
Cogliano cautioned that ultravoilet radiation is not healthy, whether it comes
from a tanning bed or from the sun. The American Cancer Society advises people
to try bronzing or self-tanning creams instead of tanning beds.