Ending Aging — Aubrey de Grey (2007)

What it covers

The SENS framework: seven categories of age-related damage, each with proposed repair strategies:

1. Cell loss / atrophy.
2. Cellular senescence.
3. Nuclear mutations / epimutations.
4. Mitochondrial mutations.
5. Intracellular junk.
6. Extracellular junk.
7. Extracellular crosslinks.

de Grey argues that addressing each category in turn can deliver "longevity escape velocity" — lifespan extending faster than chronological time accumulates.

Where it sits historically

The book pre-dates much of the modern longevity-biotech industry. Many specific programmes it advocated have since been spun out into companies:

• Senolytics — Unity Biotechnology, others.
• Cyclodextrin / 7-ketocholesterol clearance — Cyclarity.
• Allotopic mtDNA expression — ongoing pre-clinical work.
• Catabodies for extracellular amyloid — multiple programmes.

What to read critically

• de Grey’s timeline predictions have not panned out.
• The engineering-style framing under-represents the systemic / signalling component of aging.
• Some specific mechanisms (WILT for cancer) remain controversial.
• de Grey himself is a polarising figure; the book stands or falls on its content rather than its author.

Companion content

• SENS Research Foundation publications.
• de Grey’s LEV Foundation work (since 2021).

More on this topic

• Ending Aging (Aubrey de Grey) — Book.
• How Not to Die — Michael Greger (2015) — Book.
• Lifespan — David Sinclair (2019) — Book.
• The Longevity Diet — Valter Longo (2018) — Book.
• Outlive — Peter Attia (2023) — Book.

Related entries

Aubrey de Grey, SENS Research Foundation, Longevity escape velocity, Cyclarity.