Despite medical advances, life expectancy gains are slowing

Life expectancy gains have slowed significantly since 1990, with only a 6.5-year increase in the world's longest-living populations. A new study suggests humans are nearing a biological limit to lifespan, contradicting predictions that most people born today will live past 100. The research indicates that major longevity improvements have already occurred through disease prevention, leaving aging as the main obstacle. The study recommends shifting focus to extending "healthspan" - the number of healthy years a person lives - rather than solely increasing lifespan.