Posted by RB (24.50.229.219) on August 16, 2001 at 21:48:12:
In Reply to: I've wondered about that myself...I work midnights and.... posted by RB on August 16, 2001 at 21:31:10:
I just found this:
http://dem0nmac.mgh.harvard.edu/forum/HeadacheF/sunlightandvitaminD.html