II. Risk Factors: Young Patients
- Major Depression
- Overwork
- Failing Relationships
- Major unresolved decisions
- Chronic anxiety
- Malingering
- Somatization Disorder
- Mononucleosis
- Hepatitis
- Rheumatic or Endocrine Disease
- Toxins
- Tumor
III. Risk Factors: Geriatric Patients
- Cardiac Disease
- Renal Disease
- Hepatic disease
- Anemia
- Drug Abuse
- Medication use or medication adverse effects
- Analgesics
- Sedative-Hypnotic medications (e.g Benzodiazepines)
- Laxatives