Cancer boom

The Cancer Registry of Norway believes the nation faces a steady increase in the number of cancer patients in the next 15 years.

The Registry said that the total number of cancer patients will increase by 26 percent by the year 2020.
For women it is breast and lung cancer that is most on the rise.

Breast canser

Norwegian researchers have found that highly educated women die more often from breast cancer than women with less education. This applies to both women with children and those without, but the researchers don't know why education levels make such a difference.
Why? I just ask.