Modern epigenetics is clear: A father’s lifestyle before conception programs the genes his son inherits. Your habits become chemical marks on your sperm. And those marks shape your son’s: • testosterone levels • metabolism • muscle development • stress response • discipline circuitry • even his future body-fat distribution If your life is built on: • skipping meals • high cortisol • chronic stress • low protein • poor sleep • no structure • inconsistent training • dopamine addictions Your son do