Increasing Depression May Indicate Greater Dementia Risk

Depression is a known risk factor for dementia, but most studies have only focused on depression at a single point in time and not over a multi-year time frame. In this study, researchers looked at the depressive symptoms of 2,488 seniors over a five-year time period and then followed up with them over a decade later. They found that those with high and increasing depressive symptoms during the data collection period were nearly twice as likely to develop dementia than even those with moderate depressive symptoms.
JAMA Psychiatry, March 2016