“80% of all episodes of depression have been preceded by a stressful life event,†No biomarkers,†Dr. Bullmore answers, which are available in all areas of medicine . . . “except psychiatry, which doesn’t currently have a single blood test or biomarker to its name.†A biomarker, or biological marker is a measurable indicator of some biological state or condition. Biomarkers are often measured and evaluated to examine normal biological processes, pathogenic processes, or pharmacologic responses to a therapeutic intervention.[”
