Face down restraints are used more often on women and girls than on men. 51 out of 58 mental health trusts use restraints unnecessarily when other techniques would work. Organisations opposed to restraints include Mind and Rethink Mental Illness. YoungMinds and Agenda claim restraints are “frightening and humiliating” and “re-traumatises” patients especially women and girls who have previously been victims of physical and/or sexual abuse. The charities sent an open letter to health secretary, Jeremy Hunt showing evidence from 'Agenda, the alliance for women and girls at risk', revealing that patients are routinely restrained in some mental health units while others use non-physical ways to calm patients or stop self-harm. According to the letter over half of women with psychiatric problems have suffered abuse, restraint can cause physical harm, frighten and humiliate the victim. Restraint, specially face down restraint can re-traumatise patients who previously suffered violence and abuse. “Mental health units are meant to be caring, therapeutic environments, for people feeling at their most vulnerable, not places where physical force is routine.”