Geneticist Austėja Letukienė was motivated by her personal experience in athlete genetics: her body responded remarkably well to strength training, earning her a medal in her first competition after only three months of training. Currently, her team’s research benefits not just professional athletes but anyone exercising, helping them make better decisions about their sport, training techniques, and nutrition. Which health-related gene hampers us, and which supports our training? Are these genes common among Lithuanians? And how might understanding our genetic makeup for athletic ability enhance our lives—if we recognize them and learn to use this knowledge effectively?