Venki Ramakrishnan: The Science and Hype of Living Longer

Aging represents the gradual loss of function across molecules, cells, and tissues due to accumulated damage. While life expectancy has doubled over the last 150 years through public health advancements, the biological ceiling remains near 120 years. Cellular reprogramming offers a theoretical path to reverse aging, yet it faces severe technical and safety challenges, including the risk of oncogenesis. Current, high-profile longevity investments often reflect a tech-sector bias toward viewing human biology as hackable software, ignoring the complex, analog nature of the body. Instead of pursuing speculative interventions like young blood transfusions or cryopreservation, maintaining healthspan is best achieved through fundamental practices such as caloric moderation, consistent sleep, and regular exercise. These lifestyle factors remain the most reliable methods for mitigating the biological decline inherent in the aging process.