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Discover Your TRIZAN PlanThe global life insurance industry's business model rests on actuarial tables built from two centuries of human mortality data. The pension industry's financial projections are built on assumptions about how long people will collect benefits after retirement. Healthcare systems are designed around the assumption that human health declines predictably over time. Retirement savings products, long-term care insurance, age-related pharmaceutical markets, and the entire apparatus of financial planning for the later years of life are all premised on a mortality and morbidity curve that has shifted gradually over the past century — average lifespans growing by two to three years per decade through improved nutrition, public health, and acute disease treatment — but has maintained its basic shape. Longevity biotech is targeting that curve directly — not improving treatments for the diseases of aging after they develop, but intervening in the biological mechanisms of aging itself to slow, arrest, or reverse the cellular and molecular processes that cause the degenerative conditions of later life. The research has moved, in the past decade, from theoretical biology to clinical science: clinical trials testing interventions in humans are producing early results; the first drugs targeting cellular senescence, epigenetic aging clocks, and metabolic aging pathways are in Phase 2 and Phase 3 trials; and the capital flowing into the longevity sector from top-tier institutional investors suggests that the scientific and commercial community believes the therapeutic approach is viable. The Science of Biological Aging: Hallmarks, Mechanisms, and Intervention Points Understanding the longevity industry requires understanding the current scientific framework for biological aging — the "hallmarks of aging" framework established by Lopez-Otin and colleagues in 2013 and updated in 2023, which identifies the fundamental cellular and molecular processes that drive the aging phenotype across tissues and species. The hallmarks include genomic instability (the accumulation of DNA damage over time), telomere attrition (the shortening of protective chromosome caps with each cell division), epigenetic alterations (changes in gene expression patterns that diverge from the youthful state), loss of proteostasis (degradation of protein quality control mechanisms), deregulated nutrient sensing (dysfunction in the cellular pathways that coordinate metabolic response to nutrient availability), mitochondrial dysfunction, cellular senescence (the accumulation of cells that have lost their ability to divide but remain metabolically active and secrete inflammatory signals), stem cell exhaustion, and altered intercellular communication. Each of these hallmarks represents a potential intervention point — a process that could, in principle, be slowed or reversed with appropriate therapeutic molecules, gene therapies, or lifestyle interventions. The longevity biotech industry is pursuing interventions against most of these hallmarks simultaneously, with different companies focusing on different mechanisms. Calico (backed by Alphabet), Unity Biotechnology, Altos Labs, NewLimit, and dozens of smaller startups are each pursuing therapeutic programs targeting specific aging mechanisms, while companies like Elysium Health, Tally Health, and InsideTracker are building consumer-facing products that translate longevity science into accessible interventions. The $600 Billion Market and Its Business Implications The economic opportunity in longevity is enormous by almost any estimation methodology. Morgan Stanley's 2023 analysis projected the longevity