Psychological loss can occur when someone loses a job, loses a sense of control or safety or when a spouse dies. Such loss, which erodes well-being and negatively impacts quality of life, may be a common experience but little is known about the molecular process in the brain that occurs because of loss. New research from the University of Cincinnati explores those mechanisms through a process known as enrichment removal (ER). The study highlights an area of the brain that plays a key role in psychological loss and identifies new molecular targets that may alleviate its impact.