|
| |
Sun
Exposure Prevents Prostate Cancer
STAFFORD SHIRE, UNITED KINGDOM. British
researchers have confirmed that exposure to sunlight helps prevent prostate
cancer. Their study involved 210 men diagnosed with prostate cancer and 155 men
with an enlarged prostate, but no prostate cancer (controls). The men were
interviewed in order to estimate their lifetime sun exposure. Men with the
lowest exposure were found to have a three times greater incidence of prostate
cancer than did men with a high lifetime exposure. Sunburns in childhood were
found to be particularly protective with men having had one or more childhood
sunburns being six times less likely to develop prostate cancer than men who had
not experienced childhood sunburns.
A history of regular foreign holidays,
presumably in sunnier climes, also had a protective effect with men having had
such holidays having a 60 per cent lower risk of prostate cancer. Regular sun
bathing was also found to be protective. The risk of prostate cancer was not
associated with skin type, hair colour or eye colour, and the associations with
sun exposure were not affected by including occupation, vasectomy or dietary
factors in the analysis.
The researchers are not sure why sun exposure is protective, but speculate that
vitamin D and parathyroid hormone may somehow be involved. Editor's Note:
Excessive sun exposure has been linked to an increased risk of certain
non-melanoma skin cancers. These cancers, however, are rarely fatal whereas
prostate cancer often is. So on balance, cultivating a healthy suntan is still a
good idea.
Luscombe, Christopher J., et al. Exposure to ultraviolet radiation: association
with susceptibility and age at presentation with prostate cancer. The Lancet,
Vol. 358, August 25, 2001, pp. 641-42 (research letter)
 
Vita-Lite is made
by Durotest Lighting. It is a full spectrum light, like the natural light of the
sun. You can buy at www.full-spectrum-lighting.com
|