Towards a More Active Lifestyle: The Relationship Between Physical Activity Levels, Caffeine Consumption, and Sleep Quality in Sedentary University Students
DOI:
https://doi.org/10.65668/31ax5407Keywords:
Body composition, Caffeine consumption, Sleep quality, Physical activity, Young adultsAbstract
Physical activity (PA) levels, caffeine consumption (CC), and sleep quality (SQ) in young adults are among the key lifestyle factors influencing the physiological balance and overall health profile of the human body. This cross-sectional study investigated the relationships among CC, SQ, and PA levels in 563 university students (female = 287; male = 276; mean age = 20.60 ± 1.99 years). CC was assessed using a standardized Caffeine Consumption Frequency Form, SQ was measured with the Basic Scale on Insomnia Complaints and Sleep Quality (BaSIQS), and PA was evaluated via the Physical Activity Scale-2 (PAS-2). Data analyses included Mann–Whitney U, Kruskal–Wallis, Spearman correlation, and multiple linear regression tests, with significance set at p < 0.05. Results indicated a borderline significant association between CC and overall SQ (p = 0.050) and a significant relationship with sleep-onset difficulties (SOD) (p = 0.011). Regression analyses suggested that higher CC was associated with a tendency toward increased SQ and SOD scores, indicating potential adverse effects of caffeine on sleep. No significant associations were observed between CC and awakening disturbances (AD) or overall PA levels; however, participants in the “very high” CC group exhibited the highest PA levels. In conclusion, the findings of this study indicate that the interactions between CC, SQ, and PA among young adults are important factors in promoting an active and healthy lifestyle. These findings underscore the importance of limiting caffeine intake—particularly in the evening—and maintaining regular physical activity to support both sleep health and overall quality of life in young adults.
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Copyright (c) 2025 Bekir Tokay (Author)
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