Vitamin D experiment

I tried a vitamin D experiment today. My hypothesis was that if I studied in the sun, the vitamin D would help me retain more. While the sun on my back felt good, further testing was difficult because it was so bright. I thought that maybe I needed more vitamin D to be more effective. So, then I tested out my lawn chair, pulled up my pants and shirt sleeves (to gain the most vitamin D possible of course). While the sight of my pale legs and lack of shaving them was frightful at first, I was able to relax for awhile. My test was cut short by a phone call, so my conclusion is that I will need to do more testing, on multiple days, to see if I can prove my hypothesis.