Professor of Medicine in the Division of Sleep Medicine at Stanford University School of Medicine. Dr. Guilleminault’s scientific focus is on cardiorespiratory dysfunction during sleep, obstructive sleep apnea, SIDS and sleep apnea, narcolepsy and daytime somnolence, the relationship of sleep to accidents, aging, dementia and Alzheimer’s disease. Along with Dr. Dement, Dr. Guilleminault helped build the world’s first sleep laboratory and clinic at Stanford University. Among the most respected and published experts in sleep research, Dr. Guilleminault was the first to describe pediatric obstructive sleep apnea and Upper Airway Resistance Syndrome (UARS). He has authored over six hundred articles in peer-reviewed medical journals, and has won numerous awards for his research in the field of sleep medicine. Working in collaboration with Dr. William Dement, he established the Apnea/Hypopnea Index (AHI) that is used today worldwide to diagnose obstructive sleep apnea and measure the degree of severity.