Have We Gotten Sunscreen Totally Wrong

Outside

• " True, the sun worshippers had a higher incidence of it—but they were eight times less likely to die from it."

• "Avoidance of sun exposure is a risk factor of a similar magnitude as smoking, in terms of life expectancy.”

• “Homo sapiens have been around for 200,000 years. Until the industrial revolution, we lived outside.

  • How did we get through the Neolithic Era without sunscreen?
  • Actually, perfectly well.
  • What’s counterintuitive is that dermatologists run around saying, ‘Don’t go outside, you might die.’”

See also VitaminDWiki

• Sunscreen (SPF-30) slightly increased the vitamin D from UVB – RCT Jan 2019

• The Greatest Public Health Mistake of the 20th Century (sunscreen block Vitamin D) - 2017

• Widespread regular sunscreen application deemed not useful in the US – April 2018

• Overview Skin and vitamin D

• Embrace the Sun – benefits of the sun (Nitric Oxide etc.) – book June 2018

• Avoiding the sun reduces lifespan by 2 years (smoking reduces lifespan by 10 years) – March 2016

• Dermatologists use sun block, stay indoors, and have low vitamin D (Thai in this study) – Dec 2018

Noontime sun and D category starts with

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See also web

• What You Need to Know About Sunscreen Ingredients Consumer Reports March 2019
  • "But the agency (FDA) is now asking the sunscreen industry to provide additional safety information on 12 common chemical sunscreen ingredients, including oxybenzone, avobenzone, homosalate, octinoxate, octisalate, and octocrylene.

• Wait, What’s the Deal With Sunscreen? Does It Work or Not? Wired April 2020 excellent description

  • % of UVB getting to the skin (the rest is turned into heat, not reflected)
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