RESUMEN
Background: Brain Fag Syndrome (BFS) is a culture-bound syndrome characterized by cognitive and somatic symptoms, commonly reported among African students. This study aimed to determine the prevalence of BFS among Nigerian university students and examine its associated factors. Methods: A cross-sectional survey was conducted among undergraduate students from a university in the northwest region of Nigeria. The study utilized a self-administered questionnaire to collect data on socio-demographic characteristics, stimulant use, course of study, and academic performance. The presence of BFS was assessed using standardized diagnostic criteria. Results:The study included a total of 625 participants, in their young adulthood. The prevalence of BFS among Nigerian university students was found to be 62.7%. The majority of affected students were aged 20-30, male, and from the Hausa ethnic group. No significant association was found between stimulant use and BFS. However, there was a significant relationship between the course of study and the occurrence of BFS. Academic performance (CGPA) showed a weak negative association with BFS. Other socio-demographic factors such as age, gender, ethnicity, relationship status, birth position, type of home, and family income did not predict the occurrence of BFS. Conclusion: The high prevalence highlights the need for attention to mental health issues among this population. The results emphasize the importance of considering the course of study and academic performance when studying BFS. Further research is warranted to explore the underlying mechanisms and develop effective interventions for students affected by BFS.