Note: Many in the alternative healt field have been warning about lowering cholesterol too much. The drug companies on the other hand have been pushing to make extremely low cholesterol levels to be considered as "normal", and normal levels to be considered as high. Low cholesterol levels are associated with depression and even possible increases in incidences of certain cancers.
Is it possible to have too low a level of cholesterol? A cholesterol profile that reduces the risk of heart disease may increase the risk for Parkinson's disease -- at least for men -- researchers report.
Going back several years, studies have uncovered associations between low cholesterol and suicide, stroke, depression, even violence. While the findings in most cases did not stand up to scrutiny, the suspicion remains that very low cholesterol might influence mental function.
Low cholesterol linked to Parkinson's risk in men - Yahoo! News