Inclusion Criteria:  ASA score 1 and 2. Planned for elective, one day surgery: inguinal hernia repair, hydrocele surgery, testis retention surgery, varicocele and phimosis surgery, Signed written informed consent for participation in the study by parent and/or legal guardian.  Exclusion Criteria:  Confirmed propofol allergies. Mitochondrial disease Disease of lipid and carbohydrate metabolism Neurological disorders Treated psychiatric comorbidities Hypertension.