Published in Cancer Weekly, November 17th, 1997
Esther John, an epidemiologist from Northern California Cancer Center, said that her study shows that women who get enough sun to produce good levels of vitamin D can lower the risk of breast cancer by 30 to 40 percent and perhaps even more.
"We know now that a little bit of sun is beneficial, but it is not good to stay out there four or five hours," said John. "We don't want to recommend that people go out and bake in the sun."
She said it is well-known that excessive exposure to ultraviolet rays from...
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