What does the 'diathesis-stress model' suggest about mental disorders?

The diathesis-stress model posits that mental disorders arise from the interplay between an individual's biological or psychological predispositions (the diathesis) and environmental stressors or triggers. This model emphasizes that while some individuals may have inherent vulnerabilities—such as genetic factors, early life experiences, or personality traits—these predispositions alone do not determine whether a mental disorder will develop. Instead, the actual manifestation of a disorder is influenced by the presence of stressors, such as traumatic events, chronic stress, or significant life changes.

This model illustrates that mental health is a dynamic process, where both nature (the individual's biological vulnerabilities) and nurture (the stressors in the environment) interact to influence psychological outcomes. For example, someone with a family history of depression may not exhibit symptoms unless they encounter significant stressors, such as loss of a loved one or major life transitions. Thus, the correct answer encapsulates the comprehensive approach of the diathesis-stress model, identifying how both predispositions and environmental factors contribute to mental health disorders.