About Testosterone/Cortisol Ratio

The Testosterone to Cortisol (T/C) ratio is a significant biomarker often utilized in sports medicine, endocrinology, and health and wellness research to understand the dynamic balance between anabolic (building up) and catabolic (breaking down) metabolic processes in the body. This biomarker is crucial in evaluating an individual’s physiological stress levels, recovery status, and overall readiness for physical performance. Testosterone, a key anabolic hormone, promotes muscle growth, energy levels, and bone density. In contrast, cortisol, the 'stress hormone', primarily functions in metabolic regulation, immune response modulation, and inducing stress responses, often leading to muscle breakdown when elevated.

The ratio between these two hormones provides valuable insights into the body's adaptive responses to various stressors, including exercise, psychological stress, and illness. Monitoring the T/C ratio is thus instrumental for athletes, coaches, and healthcare professionals to optimize training schedules, monitor recovery, and prevent overtraining while also serving as a useful tool for researchers studying stress and metabolism. The interpretation of this ratio should be individualized and contextual, considering factors like age, sex, lifestyle, and overall health status to draw meaningful conclusions and implement effective interventions.

Biostarks reference ranges for T/C ratio

• Testosterone/Cortisol ratio (TCOR-S): 3.5-15 U

Scientific references:

• Romero-Martínez, A., González-Bono, E., Lila, M., & Moya-Albiol, L. (2013). Testosterone/cortisol ratio in response to acute stress: A possible marker of risk for marital violence. Social Neuroscience, 8(3), 240-247.
• Greenham, G., Buckley, J. D., Garrett, J., Eston, R., & Norton, K. (2018). Biomarkers of physiological responses to periods of intensified, non-resistance-based exercise training in well-trained male athletes: a systematic review and meta-analysis. Sports medicine, 48, 2517-2548.
• Frx, A., Kraemer, W., Stone, M., Koziris, L., Thrush, J., & Fleck, S. (2000). Relationships Between Serum Testosterone, Cortisol, and Weightlifting Performance. Journal of Strength and Conditioning Research, 14, 338–343.
• Hloogeveen, A. R., & Zonderland, M. L. (1996). Relationships between testosterone, cortisol and performance in professional cyclists. International journal of sports medicine, 17(06), 423-428.
• Caccese, C., Jones, S. L., Ramesh, M., Yu, A., Brossard-Racine, M., & Nguyen, T. V. (2022). Role of testosterone: cortisol ratio in age-and sex-specific cortico-hippocampal development and cognitive performance. Journal of Developmental Origins of Health and Disease, 13(1), 28-38.
• Glenn, A. L., Raine, A., Schug, R. A., Gao, Y., & Granger, D. A. (2011). Increased testosterone-to-cortisol ratio in psychopathy. Journal of abnormal psychology, 120(2), 389.