The simple view of the bonding in methane You will be familiar with drawing methane using dots and crosses diagrams, but it is worth looking at its structure a bit more closely. There is a serious mis-match between this structure and the modern electronic structure of carbon, 1s 2 2s 2 2p x 1 2p y 1.
The second reason for a low vitamin D is that you have primary hyperparathyroidism due to a small tumor in your neck and the body converts all the vitamin D-25 (that your doctor is measuring) to the active Vitamin D-1-25 (that doctors do not measure). This is the blue blob on the graph.
Research does seem to show a link between low levels of vitamin D in the blood and symptoms of depression. However, research hasnât yet shown clearly whether low vitamin D levels cause depression, or whether low vitamin D levels develop because someone is depressed.here are a number of good research studies from the last few years that look specifically at vitamin D and depression. In a review of research about vitamin D and depression in 2013, 9 researchers looked for and analysed all of the published research about depression and vitamin D up until February 2011.