Virtual reality (VR) is a simulated environment with scenes and objects that people can explore while wearing a headset or viewing a screen. This creates an immersive experience that can trigger emotional responses like those in real-world situations. Some VR technologies are designed to be used by a qualified therapist as a tool in therapy sessions to support the delivery of face-to-face or remote cognitive behavioural therapy (CBT). Other VR technologies are designed to be a standalone digital intervention that can be used with the support of a wider range of mental health professionals, such as assistant psychologists, peer support workers or therapists. VR technologies can help deliver treatments such as exposure therapy, by allowing people to immerse themselves in real-world situations while being in the safety of their home or clinic. Virtual environments can be adjusted based on a person's needs and individual treatment plan. This could allow more gradual exposure to stressful situations and increased comfort in completing interventions.