Most people think comfort keeps them safe. Science says otherwise. Comfort weakens you, shortens your lifespan, and turns your body into soft clay. Real results come from habits that stress, challenge, and strengthen you — and the data is undeniable. Here are 8 science-backed truths about training, eating, recovery, and even faith. Ignore them, and you decay. Apply them, and you build a body, mind, and spirit that lasts.