I. Introduction
II. Liver Function
III. Comorbid Conditions and Liver Disease
1. Nonalcoholic Fatty Liver Disease (NAFLD)
2. Obesity and Liver Disease
3. Diabetes and Liver Disease
4. Hypertension and Portal Hypertension
5. Metabolic Syndrome
6. Obstructive Sleep Apnea
IV. Case Study: OSA and Fatty Liver Disease
V. Summary