Posted by Twinleaf on August 9, 2014, at 13:42:52
As people drink less milk and protect themselves from the sun so effectively, there is apparently an epidemic percentage of very low Vitamin D levels. Low levels have been implicated in depression and the development of Alzheimer's, so it is a great thing to detect and prevent at any age.
poster:Twinleaf
thread:1069475
URL: http://www.dr-bob.org/babble/20140717/msgs/1069475.html