While any addiction can exacerbate anger issues due to the inherent loss of control and emotional upheaval it causes, certain addictions are more frequently associated with heightened anger responses. For instance, alcohol addiction often leads to lowered inhibitions and impaired judgement, which can result in more aggressive and volatile behaviour. Similarly, stimulant drugs like cocaine and methamphetamine can increase irritability and aggression due to their intense impact on the brain’s reward and stress systems. However, the key factor is often your underlying emotional and psychological state, not the effects of the substance itself.