Several factors are involved in the etiology of metabolic syndrome, the most important of which are insulin resistance, obesity (especially abdominal obesity), lipid abnormalities, impaired glucose tolerance, hypertension, pre-inflammatory status, genetic factors, unhealthy lifestyle, trend Rapid urbanization, nutritional factors, inactivity, smoking and hookah smoking, social, economic and cultural factors, level of education, psychosocial stresses and environmental pollution. But psychological factors such as meta-cognitive beliefs, life orientation (optimism, pessimism) and positive and negative emotions, Hypothalamic-Pituitary-Adrenal (HPA) axis activity, type D personality, depression and anxiety also play a role in causing it.