Good article - thanks!

Family anecdote: My husband & I have never used sun screen, nor have our children - now adults. We spend a lot of time outdoors in decent weather & none of us have had any problems, nor did our parents with similar outdoor lifestyles. But for a few years now my husband has been getting what the doc calls pre-cancerous thingies on his face. The doc removes them (which costs a lot of money even with Medicare) because he says they could grow into full-blown cancer. I'm wondering if it's more from age rather than sun because they didn't show up until he was almost 80. Or skin color - he's much paler than I or our children.

A question: I use a light therapy lamp for SAD in the winter. Does that kind of light also produce vitamin D? I do take D supplements because it seems to help my mood.