@Myra LOUIS its called genetics, Every man carries genes that determine his baseline bone density, muscle fiber distribution (fast-twitch vs. slow-twitch), and hormone production, When a man is placed under physical stress, it triggers a blueprint already written into his DNA. Environmental demands unlock that genetic potential through a process of cellular adaptation, When men lift heavy objects or endure intense physical labor, you create microscopic tears in the muscle fibers. This damage sends a mechanical signal to your DNA, In response, your genes switch on the production of proteins to repair and reinforce those fibers, making them thicker and stronger than before to handle future stress.
