The 1941 paper on Solar Radiation and Cancer references a 1912 paper on the same subject
- Lots of people were on the farm
- There was no air conditioning, TV, video games, internet to keep you indoors. even if you lived in cities
Here are a few of the images
Cancer vs percent of agriculture in the state
lots of the population was on the farm back then
Cancer and latitude
Note: the data is not sorted by latitude
However, Skin Cancer increased with solar radiation
PDF is attached at the bottom of this page
See also Vitamin D Life
- Many reasons why vitamin D deficiency has become epidemic
- Overview Cancer and vitamin D
- Solar UVB reduces Cancer Risk – Grant, Jan 2013
- Interview concerning UVA, UVB, and health – Grant Dec 2012
- Hypothesis of cause and effect of vitamin D deficiency which has the following chart
Note how MS has increased in the South as there were fewer farmers and everyone could avoid the sun