The editorial provides commentary on the following: See related article: Kvorning, T., Kadi, F., Schjerling, P., Andersen, M., Brixen, K., Suetta, C. & Madsen, K. 2014. The activity of satellite cells and myonuclei following 8 weeks of strength training in young men with suppressed testosterone levels. Acta Physiol. 201, 676-687.