A longevity startup is designed to slow aging by targeting its 12 biological root causes. What he learned became the foundation for NOVOS, a longevity-focused supplement startup that's now backed by researchers from Harvard, MIT, and beyond. According to Mirabile, better sleep improves nearly every marker of health: blood sugar regulation, stress response, willpower, mood, and recovery. "Sleeping alone, skipping meals with friends, chasing a metric at the cost of your relationships — that's not living longer, that's living less." A supplement designed to slow down agingMirabile set out to slow the pace of biological aging by targeting its 12 root causes.