What can cause delusions?

Delusions are fixed, false beliefs that are resistant to reason or confrontation with actual fact. They can arise from various sources, including illnesses such as schizophrenia or severe depression, the effects of certain drugs (both prescription and recreational), and psychological factors such as trauma or extreme stress. These factors can disrupt an individual's perception of reality, leading to the development of delusions.

For instance, certain mental health disorders can cause the brain to interpret information differently, resulting in beliefs that do not align with reality. Similarly, substances that alter brain chemistry can trigger or exacerbate these false beliefs, making them a significant concern in mental health treatment. Understanding that delusions can stem from these multiple sources is essential for proper diagnosis and intervention.