Most people know that high cholesterol levels place them at increased risk for heart disease and stroke. Prior research has shown that particular types of strokes contribute to one's risk for depression, and that abnormal blood lipid levels can increase the risk of depression in the elderly.
In contrast, the men who were at greater risk of depression had low levels of the "bad" form of cholesterol, low density lipoprotein (LDL). This was especially true for those men with a genetic vulnerability to depression related to a serotonin transporter gene.
Mental health risk increased