During National Prevention Week, May 13-19, the Substance Abuse and Mental Health Services Administration (SAMHSA) encourages families to take action today for a healthier tomorrow.During National Prevention Week, May 13-19, the Substance Abuse and Mental Health Services Administration (SAMHSA) encourages families to take action today for a healthier tomorrow.During National Prevention Week, May 13-19, the Substance Abuse and Mental Health Services Administration (SAMHSA) encourages families to take action today for a healthier tomorrow.