A question was asked in Chat about the effects of low blood cholesterol levels. I have found two interesting references, one Norwegian and one Korean suggesting a rethink on using cholesterol levels for algorithms of cardiovascular risk. Both suggest low levels of blood cholesterol may be disadvantageous to health.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3303886/
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3247776/
I thought it worth its own thread.