One in three suicide attempts may be attributable to adversity in childhood, according to a new systematic review from researchers at Harvard and Columbia University. Researchers analyzed findings from 19 separate research studies which included data on more than 20 million participants to examine the relationship between experiences of childhood adversity – including abuse, neglect, family violence, and financial hardship – and health outcomes later in life. In addition to physical health conditions like heart disease and cancer, childhood adversity was most strongly associated with suicide attempts. These findings highlight the need to understand, and develop interventions for, individuals who have experienced adversity. To learn more, see the study in JAMA.