Diathesis-stress model refers to a theory of stress that suggests that some individuals are vulnerable to stress-related illnesses because they are genetically predisposed to those illnesses.
Other /More definition:
Diathesis-stress model refers to the proposal that people are born with a predisposition (or "diathesis") that places them at risk for developing a psychological disorder if exposed to certain extremely stressful life experiences. Moreover, it refers to hypothesis that both an inherited tendency/ vulnerability and specific stressful conditions are required to produce a disorder.
Other /More definition:
Diathesis-stress model refers to the proposal that people are born with a predisposition or "Diathesis" which places them at risk for developing a psychological disorder if exposed to certain extremely stressful life experiences. It is a theory of stress that suggests that some individuals are vulnerable to stress-related illnesses because they are genetically predisposed to those illnesses.