Mark Spence on why taxes, medical bills, and estate planning may shape your lifespan more than diet. While the wellness industry focuses relentlessly on nutrition, exercise, and sleep, a growing body of research points to financial stress as one of the most powerful — and most neglected — determinants of longevity. Chronic financial anxiety activates the same stress pathways as physical threats, elevating cortisol, suppressing immune function, and accelerating biological aging. This article explores how the burden of medical bills, tax complexity, and inadequate estate planning creates a slow-burning health crisis for millions of people, and why addressing financial wellbeing must become a core component of any serious longevity strategy. The evidence is clear: your accountant and your estate attorney may be as important to your lifespan as your personal trainer.