​Khalid Trabelsi , an Assistant Professor at the Higher Institute of Sport and Physical Education of Sfax, University of Sfax, Tunisia, since 2012, earned his Ph.D. in 2016 from the University of Carthage in Tunisia. 

He also holds visiting professor positions at several universities in Germany. 

Over the past decade, Dr. Trabelsi has received numerous international research grants and has published over 200 articles in ISI-indexed journals in the fields of sports medicine, sleep medicine, and psychiatry.​