Being adopted when you were an infant. According to the diathesis-stress model, diatheses interact with stress to cause mental illness. In this context, "stress" refers to any life event that disrupts an individual's psychological equilibrium — their normal, healthy regulation of thoughts and emotions.
According to the diathesis-stress model, psychological disorders are caused by a combination of inherent vulnerability and environmental stressors. Such interactions between dispositional and environmental factors have been demonstrated in psychopathology research.
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