A new study of intentional drug overdose deaths, or suicides by an overdose of a medication or drug, found an overall decline in recent years in the United States, but an increase in young people aged 15-24, older people aged 75-84, and non-Hispanic Black women. The study also found that women were consistently more likely than men to die from intentional drug overdoses, with the highest rates observed in women ages 45 to 64. In addition, factors such as time of year, length of day, and day of the week appeared to be associated with intentional overdose death rates. The study published today in the American Journal of Psychiatry and was led by investigators at the National Institute on Drug Abuse (NIDA), part of the National Institutes of Health.