Skin Cancer
A report
in the August 10, 2005 issue of The
Journal of the American Medical Association
found that the incidence of basal cell carcinoma and
squamous cell carcinoma is up both in young men and
young women, but that the rates have nearly tripled
in women under age 40 since the late 1970s. Researchers
suggest increasing incidence is likely due to a combination
of factors, including increased exposure to UV light,
ozone depletion, and increased surveillance. And risk
factors include long-term exposure to the sun resulting
in photodamage, certain genetic defects (e.g. basal
cell nevus syndrome and xeroderma pigmentosum), smoking,
and the use of tanning beds.
An earlier study,
published in the July 20, 2005 issue of the Journal
of Clinical Oncology had reported that
rates of melanomas in children are increasing rapidly,
increasing 46% per year of age and 2.5% per year from
1973 to 2001.
Cataracts
In a study
of 445 men aged 50 or older, researchers found that
pilots had triple the risk of developing cataracts
that men who were not pilots. The research, published
in the August 2005 issue of Archives
of Ophthalmology points the finger of
blame at cosmic radiation exposure.
Fat
According to a study
published in The
Journal of Nutrition, rats who ate a high-fat
diet showed reduced sensitivity to fullness signals
provided by the hormone cholecystokinin, which is secreted
by the small intestine. As a result, the rats on the
high-fat diet didn't know when to stop eating.
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Article published on Aug 13
05 12:59AM.
