Super Human

Asprey's thesis is that ageing is not a single process but a set of identifiable biological failures, and that if you address them directly you can change the trajectory rather than simply manage the decline. He organises the book around what he calls the four killers — cardiovascular disease, diabetes, Alzheimer's disease and cancer — and the underlying damage processes that feed them, then states an explicit personal goal of living to 180.

The scientific scaffolding comes from the hallmarks-of-ageing framework in the biology literature: mitochondrial dysfunction, cellular senescence, telomere attrition, protein misfolding, stem cell exhaustion, chronic inflammation and related mechanisms. Asprey works through each and proposes countermeasures, moving from diet, sleep, light and exercise into an escalating list of supplements, hormone optimisation, and clinical and near-clinical procedures including stem cell infusions, ozone therapy, plasma-based interventions and various light and field devices.

It is aimed at a reader willing to spend substantially on longevity interventions and curious about what the aggressive end of the field looks like.

Where it sits in the evidence is the important part. The hallmarks framework is legitimate and genuinely useful, and Asprey explains it more clearly than most popular writers. But the distance between that framework and his interventions is much larger than the book acknowledges. Identifying a mechanism of ageing does not establish that a given product modifies it, and it certainly does not establish that doing so extends healthy life in humans. Stem cell infusions for ageing, ozone therapy and several of the hormone protocols lack controlled human outcome data, and some carry real risk. The supplement stacks are extensive, expensive and largely untested as combinations. The 180-year claim is aspiration, not projection. Read it for the clear account of ageing biology and for a map of what is being marketed at the far edge of this field, and hold the interventions to a much higher standard than the book does.