The new report, Pathways to Longevity: Science and strategies in pursuit of a longer, healthier life, focuses on the crux of longevity: living healthier for longer. "Pathways to Longevity focuses on what science actually tells us about living better and longer. “How much each pillar matters depends heavily on where a given person is starting from,” Barzilai says. For someone running on five ragged hours of sleep, fixing sleep will do more than another workout. Stress reductionLike sleep, this is easier said than done for many people.