Sunshine Blues
Friday, May 8th, 2009
Those of you who live in equatorial regions, sunshine is not something you lack. Being a weather reporter there is for the most part straight-forward. The daily report may be along the lines of “well, it is going to be a generally sunny day…once again”. In this case, of course, being the reporter, your work-days are quite short. However, other areas, the Pacific Northwest of North America for example, tend to be less predictable. Therefore, being the weather reporter here in the Northwest, one is often stuck trying to predict which way the wind may blow, or when the sun may come out. And, that is quite the task. I can attest to the fact that most of the time…we the residents are just as skilled at predicting our own weather patterns as most of the reporters.
So, let us focus on the sunshine. There are so many reasons why we need the sun. It lifts one’s mood and livelihood, offers more energy, makes gardens grow, and of course, provides the essential vitamin D. Did you know that vitamin D is not really a vitamin? An active form of vitamin D (1,25-D), also known as cholecalciferol, is actually is a hormone. Vitamin D plays an important role in regulating both calcium and phosphorus levels in the body, it has an effect on the immune system and the parathyroid gland.
Now, as for the sunshine, its UV rays are required in order to produce vitamin D in nature. In our body, vitamin D is produced photochemically in the skin. Fish, for example, contain vitamin D, but only because they feed on algae, which also use the ultra violate rays to synthesize it. This is one place where we can observe the interconnectedness of life.
So, how much sunshine is enough? There are a number of factors, that will affect this, some of these are skin type, seasons, sunscreen applications, and others. However for most people about 15 minutes of sunlight per day provides an adequate dose of vitamin D. Again, in an attempt to determine an optimal dose for an individual many other factors need to be considered.
What is an ideal dose of vitamin D that is needed? There is a plethora of factors that will affect the demand for vitamin D, these include immunodeficiencies, cancer, metabolic disorders, amount of sunshine or lack thereof, and many other conditions. The current recommended daily dose of vitamin D is at 400IU. Some studies have shown that we need at least 1.5 times the recommended dose to maintain optimal circulating levels in the blood. Thus, a daily intake of around 1000IU of vitamin D has a greater protective effect on the body.
For those of you further curious about the Sunshine Blues, visit the sounds by the Memphis Jug Band, because they’ve got the blues.


