“…There is considerable evidence highlighting the prominent influence of the genotype on the responsiveness of a single individual in (i) physical performance parameters (Bouchard et al, 1999(Bouchard et al, , 2011(Bouchard et al, , 2012(Bouchard et al, , 2015Timmons et al, 2010;Puthucheary et al, 2011;Timmons, 2011;Costa et al, 2012;Pickering and Kiely, 2017;Sarzynski et al, 2017;Williams et al, 2017;Alvarez-Romero et al, 2020), (ii) brain structure (Thompson et al, 2001;Toga and Thompson, 2005;Bueller et al, 2006;Peper et al, 2007;Yoon et al, 2010), (iii) brain function (Anokhin et al, 2006;Blokland et al, 2008;Makris et al, 2009;Glahn et al, 2010), and (iv) cognition (McClearn, 1997;Anokhin et al, 2003;Goldberg and Weinberger, 2004;Blokland et al, 2008;Friedman et al, 2008). Undoubtedly, the gain of knowledge in this direction will help us to better tailor the exercise prescriptions according to an individual's characteristics (Herold et al, 2019(Herold et al, , 2020cBarha et al, 2021a).…”