In this ⁠Huberman Lab Essentials⁠ episode, my guest is Dr. David Sinclair, PhD, a professor of genetics at Harvard Medical School and a leading expert on the biology of aging. We discuss the cellular and molecular mechanisms of aging—and how specific behaviors, such as fasting, regular exercise and NAD⁺-boosting compounds like NMN, can activate the body's natural longevity pathways. This discussion highlights how lifestyle choices profoundly influence the aging process and may even slow or