The Nervous System: Where Longevity Begins When we talk about longevity, the conversation often starts with diet, exercise, supplements, genetics, hormones, sleep, or the latest anti-aging technology. All of those may deserve a place in the conversation. But there may be an even more fundamental place to begin: The nervous system. Because living longer isn't simply about keeping the body alive for more years. The real goal is maintaining our ability to function, move, think,