Sunlight: The Ugly and the FDA

Last time I started talking about UV radiation and ended with a note about melanoma and how sunlight can actually help prevent melanoma, in moderation. It’s currently the recommendation that you get 15 – 30 minutes of direct sunlight a day on as much of your skin as you would care to bare to whoever is around. This is a moderate amount that is very beneficial for manufacturing vitamins, preventing melanoma and things like that.

Beyond that you get into some trouble with damaging the skin. The way UVA damages the skin is through DNA mutation, and as we’ve all heard at some point in our life that can lead to cancer. There were a number of types of skin cancer, whether it is basal cell or melanoma or different types of skin cancer, that can arise from too much exposure. It also wrinkles the skin, damages the skin in other ways. Too much sun is not a good thing.

What about sun screens? We’ve all heard, yes, lather it on. Now we’re hearing it may not be effective and some are saying that it, in itself, is damaging. There is a huge conundrum, a huge mental problem going on. Do or don’t I? Let’s talk about those for just a minute.

Part of that problem has been caused by the government standard, the FDA nomenclature, if you will, the wording that they use. The SPF (sun protection factor) only takes into account the UVB part of the spectrum. Well, that’s the part that causes basal cell carcinomas and weathering of skin and some of the tanning. We thought as long as we were protecting the skin with UVB protectants, PABA and those type of compounds, we were doing a good thing. The problem is there is that other part of the spectrum, the UVA part that most of the common things in sunblock and sunscreen don’t block. That’s a part of the ultraviolet area that causes melanoma and other problems. So we haven’t been protecting ourselves for some time against a very, very harmful part of the light spectrum.

Now what do you do? They are trying to come out with some new sunscreens which protect against both A and B UV rays. Some people in the state of California (which is always on the forefront of what causes cancer it seems) are actually suing most of the major manufacturers of these sunscreens because they say they mislead the public into believing they were protected. They say it lasts 6 hours when it usually only lasts an hour or two. There is a whole lot of controversy in the area of sunscreens and sunblocks right now.

Next time I’ll tell you what I do when I go out into the sun, and what I think works best to protect your skin.

Sunlight: The Good, The Bad, The Ugly

We’ve all had that experience where we’ve gotten too much sun. That night you’re laying in bed but you can’t sleep. All the sheets come off and you can’t make the air conditioner run quite fast enough to be cool, because you are on fire.

All of that because of a little sunshine. Soon it will be the season of sunshine and we all have a tendency to get a little too much at times. It happened at my house with some friends visiting over the weekend a while back. There was a young lady who was just white as a sheet but she was pinker than my wife’s roses when she left.

Sunlight – is it a good thing? Is it a bad thing? Well, yes. Like many other things it is good in small quantities but bad in large quantities. There’s been this huge debate for so long about sunlight and sun protection. At one point in time the standard medical dogma was “avoid all sunlight”. Well, that made cancer rates go up. We’ve specifically learned now that not getting enough sunshine (because of Vitamin D production) is a cause of cancer. Let’s go back to the concept of moderation; everything in moderation.

What type of sunlight do we get? There are two major types that are of concern; UVA and UVB. These are part of the sunlight spectrum, way down on the ultraviolet end of the wavelength, that tend to be damaging and yet also can be very helpful. For instance, Vitamin D is manufactured when that particular wavelength of sun hits us. Vitamin D is a wonderful thing. It gives us strong bones. It’s essential for incorporating calcium into the bones. It prevents rickets, osteoporosis later in life. So there are a lot of good things that Vitamin D does.

The scare with sunlight has been melanoma. Melanoma rates have been dramatically rising. There was this “stay out of sunlight because you’ll get melanoma” mantra that doctors would repeat. But now you have to scratch your head and say, “Did melanoma rates rise after people went indoors under fluorescent lighting for most of their life, or when they were out in the sunshine most of their life?” That makes you beg the question: is not some sunlight good for you? Again, standard medicine has come full circle to say yes, you need some sunlight every day, even to prevent melanoma.

Sunlight is a particularly interesting topic to me, so I'll continue to talk more on this subject soon.