Can We Live Forever? A Crick Institute Q&A on Aging, Healthspan and the Future of Longevity

Overview

In this episode of A Question of Science, Brian Cox sits with aging researchers from the Francis Crick Institute to probe whether we can extend healthy lifespan. The discussion spans fundamental biology, biomarkers of aging, potential interventions, and the societal consequences of longer lives.

Key insights

• The aging process has identifiable hallmarks that shape healthspan and disease risk.
• Interventions like senolytic drugs and metformin show promise but face hurdles in safety, cost, and public funding models.
• Dietary strategies and exercise influence aging, with caveats for older individuals and socioeconomic access.
• Ethical and policy considerations are essential to ensure equitable access to aging biology advances.

Can we extend healthspan through biology and medicine

This podcast from the Francis Crick Institute brings together Brian Cox and a panel of aging researchers to explore whether the human lifespan can be extended beyond current limits while maintaining health. The panel includes Lynne Cox, a biochemist focused on aging; Paul Nurse, the Crick Institute director; Linda Partridge, a leader in aging interventions; and Andrew Steele, a science writer who helps translate the biology for a broad audience. The conversation navigates the universal experience of aging, the accelerating risk of death with age, and whether there is a theoretical maximum lifespan for humans. A key thread is whether biology can be tweaked to slow or reverse aging and what that would mean for individuals and society.

Key topics and sections

• Why aging could be considered an actionable biology problem and the concept of healthspan versus lifespan
• Biological ticking clocks, namely hallmarks of aging, and how tissues age differently
• Biomarkers and clocks such as the epigenetic clock and organ-specific aging signatures
• Senescence, senescent cells and the promise of senolytics in improving multiple organ systems
• Geroscience and the potential of targeting a single mechanism to prevent multiple age-related diseases
• Therapeutic and preventative strategies including metformin, caloric restriction and dietary patterns
• Model organisms and long-lived species that illuminate aging biology
• Jellyfish and reprogramming concepts as tools to understand aging at the cellular level
• Societal implications of an aging population, healthcare, retirement, and the role of public funding
• Future pathways for research, clinical trials and integration into public health systems

Takeaways

The discussion emphasizes a holistic approach to aging, combining fundamental biology with preventative medicine and public health policy. It highlights the potential for interventions to extend healthspan, the importance of equitable access, and the need for thoughtful clinical trials and funding to translate aging biology into real-world benefits.