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Sunlight on skin has decreased 9X while melanoma has increased 30X – Feb 2020

Post by Marc Sorenson on Feacebook

Squamous cell carcinoma is not one of the more dangerous skin cancers. That dubious distinction goes to melanoma, which can be deadly. When you say that the number-one way to prevent skin cancer is to avoid sun exposure, you are not correct.
Here are a few facts about melanomna:

  • •In the past four decades, sunscreen use has increased by 400%, and melanoma has increased by 400%!
  • •75% of melanomas occur on areas of the body that are seldom or never exposed to sunlight
  • •In the U.S., as sun exposure has decreased by about 90% since 1935, melanoma incidence has increased by 3,000%.
  • •As in the US, while sun exposure in Europe has profoundly decreased, there has been a spectacular increase in melanoma.
  • •Men who work outdoors have about half the risk of melanoma as men who work indoors.
  • •Outdoor workers, while receiving 3-9 times the sun exposure as indoor workers, have had no increase in melanoma since before 1940, whereas melanoma incidence in indoor workers has increased steadily and exponentially.
  • •The advent of sunscreens, along with their steadily increasing use, has not reduced the risk of melanoma.
  • •Increasing melanoma incidence significantly correlates with decreasing personal annual sunlight doses.
  • •Outdoor workers do get numerous sunburns but still have a dramatically lower risk of contracting melanoma.
  • •New melanoma cases are several times higher per capita in states like Utah, Vermont and New Hampshire than in Texas, which has the lowest rates of new melanoma.

So, since melanoma increases as sun exposure decreases, should we continue to blame the sun?
For more information: http://sunlightinstitute.org and read the new book, Embrace the sun.


See also VitaminDWiki

Embrace the Sun – benefits of the sun throughout the day and year – book June 2018
extensive review, description of contents, and links to associated material

No – 10 minutes per day of sun-UVB is NOT enough contains the following summary

  • 5-10 minutes provides only 1,000 IU ONLY IF you are near the equator
  • AND young
  •  AND not obese
  •   AND have light skin
  •    AND it is summer
  •     AND it is the middle of the day
  •      AND you have lots of skin exposed to the sun
  •       AND you are lying down
  •        AND you are not wearing sunscreen
  •         AND you have a healthy Liver
  •          AND no clouds and nor air pollution
  •           AND you have good response to sunshine (4X variation between individuals)

Noontime sun and D category starts with

Noontime sun and D has 300 items

see also
No – 10 minutes per day of sun-UVB is NOT enough
Vitamin D Myths - SUN
Optimize vitamin D from the sun
Overview Suntans melanoma and vitamin D
Overview UV and vitamin D
Avoiding the sun is the same as smoking a pack of cigarettes a day – July 2019
Fewer cognitive problems if more sun or Vitamin D
Which Is Worse - Avoiding Sunlight or Vitamin D Deficiency – April 2019
Have We Gotten Sunscreen Totally Wrong - Jan 2019
The Greatest Public Health Mistake of the 20th Century (sunscreen block Vitamin D) - 2017
Sunshine provides more than Vitamin D
5 Amazing Properties of Sunlight You've Never Heard About
Vitamin D and Sun conference – Germany June 2017
Embrace the Sun – benefits of the sun throughout the day and year – book June 2018


Items in both categories Noontime sun and Cancer are listed here:


Items in both categories UV and Cancer are listed here:


The above DO NOT include any of the specific types of Cancer - such as Breast, Lung, Skin, etc.


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