I learned the hard way that “later” isn’t guaranteed. So when a new number landed on my desk this month, I read it twice.
American life expectancy and American healthspan are now separated by a 14-year gap – the widest of any country measured. Not South Korea. Not the UK. America.
That’s the headline finding of the Global Burden of Disease Study 2023, published in The Lancet Public Health in July 2026. It’s the largest measurement of how long people live well, not how long they merely survive. Fourteen years is 17.8% of the average American lifespan spent unwell: chronic pain, mobility loss, depression.
Here’s why that number should matter more than the one on your birthday card. Life expectancy tells you how long the clock runs. Healthspan tells you how many of those years you actively get to use.
For volunteering, for grandkids, for whatever comes after the career you’ve outgrown. The US, uniquely among wealthy nations, is stretching the wrong half of the clock.
We’re Getting Older
The clock is also getting louder. By 2030, one in six people on the planet will be 60 or older: 1.4 billion people, according to the World Health Organization. The Census Bureau projects that by 2034, American adults 65 and over will outnumber children under 18 for the first time in the country’s history.
There’s real money riding on closing the gap, too. Harvard’s David Sinclair, working with economists Andrew Scott and Martin Ellison, calculated in Nature Aging that a single added year of healthy life expectancy is worth an estimated $38 trillion to the US economy, more than curing any one disease outright.
Confidence level: moderate. The $38 trillion figure is a model-based valuation, built on what people say they’d pay to avoid death and disease, not a number anyone banks. Read it as a strong argument for compressing the unhealthy years, not a guaranteed payout.
The Obvious Objection
These are population averages, surely not my fate or yours. Fair. A national number doesn’t sentence anyone to fourteen rough years later. But that’s the actual point.
The US ranks worst because of habits, not biology. And habits move. The countries with the smallest gaps aren’t genetically luckier – they just spend the extra years differently.
Start with the thing you can’t buy in a supplement bottle: connection. Stanford researcher Steven Crane, co-author of the 2025 Social Connection in America report, found 41% of American adults feel lonely at least sometimes, and fewer than one in five have six or more close relationships.
His team, which surveyed more than 10,000 US adults, files loneliness as a biological input, right next to sleep and movement.
Think about that for a moment. We notice the difference between a good sleep week and a bad one faster than just about anything at this age. Who really thinks about friendships or connection as a health intervention?
Not me. In fact, friendships are often the first thing to get pushed when you’re up against it and having one of those weeks. So, most weeks. Seems like being busy and building a business of my own in my 50s might be the exact time to focus a bit more on relationships.
Life expectancy is the number insurers care about. Healthspan is the number that decides whether you can still walk to the store, sleep without pain, and play with your grandkids in a decade or two.
Closing that gap is surely the best long-term project anyone could start in their 50s.
