His international experience includes various programs, contributions and participation in different countries for diverse fields of study.  His research interests as a Professor reflect in his wide range of publications in various national and international journals.  He is the Editorial Board Member Journal and serves as a member of various associations, apart from being an author for many books. 

Sleep Apnea disorders, Sleep Medicine, Physiology of Sleep & Wakefulness, Circadian Rhythm Sleep Disorder, Delayed Sleep, Sleep Deprivation, Sleep apnea, central Sleep apnea, obstructive Sleep disorders, Sleep terrors (night terrors), Sleeping Sickness, Sleep-related eating disorder, Sleepwalking