Story at-a-glance
- The rising rates of melanoma documented over the last three decades are not due to sun exposure as often stated; researchers instead believe they are due to an increase in diagnoses of non-cancerous lesions classified, misleadingly, as “stage 1 melanoma”
- Exposure to sunlight, particularly UVB, is protective against melanoma -- or rather, the vitamin D your body produces in response to UVB radiation is protective
- Optimizing your vitamin D levels through proper sun exposure or use of a safe tanning bed can reduce your risk of skin cancer and as many as 16 different types of cancer
- The sun is your best source of vitamin D because when you expose your skin to sunshine, your skin synthesizes vitamin D3 sulfate. This form of vitamin D is water-soluble and can travel freely in your bloodstream, unlike oral vitamin D3 supplements
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