Longevity Data and the Financial Value of Aging
The global average life expectancy reached 73.4 years in 2023 according to the World Health Organization, up from 66.8 years in 2000. In the United States, adults aged 65 and older hold a record share of aggregate household wealth, with the Federal Reserve reporting that the top 10 percent of households by age hold the majority of financial assets. This shift means longer retirements, larger inheritances, and more decades of compound growth for those who plan strategically.
Companies that serve older populations have become some of the most valuable in the world. UnitedHealth Group, the largest U.S. health insurer by revenue, generated over $371 billion in total revenue in 2023, driven heavily by Medicare Advantage enrollment. The SEC filing shows that UnitedHealth's revenue grew 14 percent year over year, reflecting the expanding demand for healthcare, chronic disease management, and insurance products tied directly to aging demographics.
Experience, Cognitive Gains, and Career Leverage
Research published in the Journal of Personality and Social Psychology shows that crystallized intelligence, which includes vocabulary, pattern recognition, and judgment, continues to improve or remain stable well into the 70s. Companies such as Berkshire Hathaway explicitly value this accumulated judgment, with Warren Buffett noting that experience compounds decision quality over decades. This cognitive profile makes seasoned professionals uniquely valuable in leadership, risk assessment, and complex problem-solving roles.
Forbes reported in 2024 that the number of U.S. workers aged 75 and older in the labor force reached a record high, driven by both financial necessity and the desire for purpose. Many of these workers occupy advisory, consulting, and board roles where deep institutional knowledge is critical. SpaceX, for example, relies on veteran engineers with decades of aerospace experience to manage complex programs like Starship, where failure tolerance is extremely low and expertise directly reduces risk.
Health Span, Lifestyle, and the Economics of Aging Well
Advances in preventive medicine and wearable technology have extended health span, the period of life spent in good health. The American Heart Association reports that adults who maintain five low-risk lifestyle factors can expect up to 12 to 14 additional years free of major chronic diseases compared to those with none. This data shifts the financial calculus of aging from pure cost to a period of continued productivity, lower medical burden, and higher quality of life.
Real estate and financial planning firms now design products around this extended health span. Companies like Vanguard and Fidelity have updated retirement income models to assume 30-year retirements for healthy 65-year-olds, reflecting the latest mortality tables. The SEC's Investor Education resources emphasize that longer life spans require earlier and more disciplined saving, but also reward those who leverage experience, compound growth, and diversified income streams across decades.