How your genes shape strength, endurance, and recovery.
Roughly half of how you respond to training is genetic, and a single gene called ACTN3 helps decide whether you are built more for power or for endurance.
Both help, but your genes tilt the balance - some people lose fat more efficiently with resistance training, others with sustained cardio, and a DNA wellness panel can hint which.
Part of injury and recovery risk is genetic - variants in genes like COL1A1 affect tendon and ligament resilience, which is why some bodies tolerate high mileage and others break down.
Recovery capacity is partly genetic - how quickly you clear exercise stress and rebuild depends on genes affecting inflammation and stress-hormone clearance.