People with higher genetic risk for depression, schizophrenia and bipolar disorder are more likely to have unusual activity levels of “fossil viruses” in their genomesPeople with higher genetic risk for depression, schizophrenia and bipolar disorder are more likely to have unusual activity levels of “fossil viruses” in their genomes People with higher genetic risk for depression, schizophrenia and bipolar disorder are more likely to have unusual activity levels of “fossil viruses” in their genomes New Scientist – Home