When Should You Go Out in the Sun?

When Should You Go Out in the Sun?
Source:
Advanced Experiments in Medical Biology 2008; 624: 86-88

New research shows that to get an optimal vitamin D supplement from the sun at a minimal risk of getting cutaneous malignant melanoma (CMM), the best time of sun exposure is noon.

That means that common health recommendations given by authorities in many countries - that sun exposure should be avoided for three to five hours around noon and postponed to the afternoon - could be wrong and may even promote CMM.

This is in part because the action spectrum for CMM is likely to be centered at longer wavelengths than that of vitamin D generation.