Poor Health Costs US Workers Two Months of Output a Year

US workers lose an average of 63.4 productive days every year to poor physical and mental health, according to the Vitality Global Health & Productivity Index 2026, and the vast majority of that toll is collected while they are still on the clock. Of that total, 53.9 days — 85% — are lost to presenteeism, the practice of working while unwell, rather than to actual absence. The research puts the annual cost to the American economy at 2.33 trillion dollars in lost productivity, as detailed in the Business Wire release.

For US workers, the imbalance between sick days and sick-at-desk days is striking. Absence accounts for just 9.5 days a year, while the rest of the lost time never shows up on any timesheet. Nearly a third of US workers say their health has a medium or high impact on their productivity while they are working, and 14% said they had missed more than four hours of work in the previous week because of health problems. The takeaway is simple: absence records capture only a fraction of the health-related productivity drain.

Presenteeism is the real drain for US workers

Most employers still manage health the way they always have: by counting sick days. The index, which polled more than 9,200 employees across five economies with independent research firm RAND Europe, suggests that approach measures the visible and smaller part of the problem. Employers concentrating on physical absence risk missing the far larger loss accumulating quietly across the working week, as people show up, power through, and produce less.

The support American companies offer is also lopsided. While US employers provide a broader range of health and medical support than their counterparts in the other markets studied, that support is weighted toward treating and managing illness rather than preventing it. Nearly half report being offered medical or health insurance through work, while the rest say they are not — yet only 18% report access to employer-organized health screenings that could catch problems early. Meanwhile almost one in three US workers is classified as obese, and 65% report moderate or serious psychological distress.

AI worry costs young US workers more than five extra weeks

The study also surfaces a tension in how artificial intelligence is landing at work. More than half of workers say AI or digital tools help them be more productive, but high AI-related concern was associated with an extra 27.6 productive days lost each year compared with workers reporting no such concern — more than five working weeks of vanished output. Roughly 12.9% of workers across the five markets fell into the high-concern group, and the worry was concentrated among younger, less senior, and already-distressed workers, as reported by Morningstar.

That pressure lands squarely on young US workers just building their careers. The findings suggest there is a real opportunity for employers that think harder about how they roll out AI tools and how they support the people most likely to feel anxious about them — especially early-career staff already carrying other burdens. Whether the technology's promised productivity gains actually materialize may come down less to the software itself than to how managers handle the rollout.

What the numbers say actually helps

The United States still came in second-worst among the five economies studied, behind only Germany and well above the five-market average. Taken together, the five markets — the US, UK, Germany, Japan and Singapore — lose an estimated 3.34 trillion dollars in productivity a year, and the American share of that total is by far the largest. The index identifies five independent risk domains for US workers: mental wellbeing, physical health burden, AI-related concern, work strain, and lifestyle risk. A worker at high risk across all five loses an estimated 119 productive days a year — close to half a working year.

Two levers stood out. Workers who feel their manager genuinely cares about their wellbeing lose nine fewer productive days a year than those who do not. And prevention, again and again, outperforms treatment: screening, earlier risk identification, and support targeted at the people most at risk. One caveat worth keeping in mind: the research was commissioned by Vitality, a global health insurer whose business includes selling employee health-engagement programs, so the pro-prevention framing also serves its commercial interests. The fieldwork itself was run by FGS Global and RAND Europe, surveying 2,079 US workers as part of a 9,206-person poll conducted from February to March 2026. As RAND Europe's Christian van Stolk put it, presenteeism left unaddressed "has the far greater impact on productivity."

The bottom line is counterintuitive: the biggest productivity crisis is not the sick days you take, but the ones you don't. This story continues our productivity coverage, including how AI troubleshooting eats a month of workdays a year.