Biological Clock Ticks: Study Puts Ultimate Human Lifespan at 194 Years

A new mathematical model suggests humans may face an immutable biological ceiling on life span, capped between 146 and 194 years even under ideal conditions. Published in npj Aging, this study posits that inevitable DNA mutations and multiple interacting aging processes create a hard limit that lifestyle and future therapies may struggle to bypass. It moves the longevity debate from "how long can we extend life?" to "what is the absolute maximum?"

Vital Signs

• **DNA...