In addition, behavioural reactions also include changes in clients' behaviours as a consequence of trauma exposure (SAMHSA, 2014b). Often these changes are relevant to the cognitive changes in thoughts and worldview due to what they have 'learned' from these traumatic experiences. Survivors of abusive relationships, for instance, may learn that they have no control in how they are being treated, or believe that they are not worthy of respect from others, and act accordingly. Admittedly, behaving in such ways may also be a way to 'survive' in an abusive relationship by deescalating situations and reducing potential risks. As a result, clients may seem lack of ability to make decision or take responsibility for their own actions; they may also be unable to respond to dangerous situations (due to learned helplessness) or find themselves engaging in another abusive relationship. Importantly, some behavioural reactions to trauma cause risks to clients' health and wellbeing. Some clients may also engage in high-risk behaviours such as self-injury, suicidal behaviours, compulsive gambling or overworking as a way to regulate intense emotions or regain sense of control (SAMHSA, 2014b). It is also common for people to turn to substance use, such as alcohol, cigarettes, and drugs, in hope of numbing themselves from intense emotions, or for relief from trauma effects such as sleep disturbance. This is also known as 'self-medication