A concept that argues that the explanation of psychosomatic disorders cannot be limited to a single dimension, but rather is the result of a complex interplay of psychological, neurological, biological, and social factors. It is based on a biopsychosocial model that suggests that life stresses interact with genetic predisposition, personality traits, and environmental and social conditions, ultimately leading to the onset of physical symptoms. This holistic approach is the most widely accepted in current practice, combining the advantages of previous theories and focusing interventions on multifaceted treatments.