(And what your nervous system actually needs) For many people today, relaxing doesn’t come easily. You finally sit down after a long day… and instead of feeling calm, your mind keeps racing. Your body feels wired. You reach for your phone. You scroll. You distract yourself. You might even wonder: Why can’t I just relax? The answer isn’t a lack of discipline or mindfulness. It’s biology. Your nervous system is responding to the modern world exactly the way it was designed to.