ACEs 101: The Research Every Workplace Should Actually Know
Two employees get the same tough feedback in a one-on-one. One takes it in, adjusts, moves on. The other spends the rest of the day in a low-grade fight-or-flight response … heart rate up, focus gone, replaying the conversation on a loop. Same words. Two completely different nervous systems.
That difference isn't about who's more "resilient." A lot of it traces back to something with an actual name and a substantial body of research behind it: Adverse Childhood Experiences, or ACEs.
What the Research Actually Says
ACEs come from a landmark study Kaiser Permanente and the CDC ran in the late 1990s, led by physicians Vincent Felitti and Robert Anda. They surveyed over 17,000 adults about childhood exposure to abuse, neglect, and household dysfunction … things like a parent's substance use, domestic violence in the home, divorce, or a family member's incarceration. Ten categories in total, one point each. What they found was a clean dose-response relationship: the higher someone's ACE score, the higher their risk for a long list of adult health and behavioral outcomes — depression, heart disease, substance use, even earlier mortality.
The CDC's most recent data shows this isn't a fringe issue. 61% of adults report at least one ACE. 16% … roughly 1 in 6 … report four or more, the threshold where risk climbs sharply. The CDC also estimates that at least 5 of the top 10 leading causes of death are associated with ACEs, and that preventing them could reduce unemployment by an estimated 15%.
Why This Belongs in a Conversation About Work
Here's the mechanism, in plain terms: chronic stress in childhood shapes how a nervous system calibrates its baseline threat response. That calibration doesn't stay in childhood … it shows up in adulthood as how someone handles conflict, criticism, unpredictability, and pressure. Which is to say: it shows up at work, every day, in ways that get labeled as personality or performance issues when they're actually physiology.
That shows up in real numbers. Research on ACEs and the workforce has linked them to higher absenteeism, more workplace injuries, and significant downstream costs …one analysis puts chronic pain, depression, and chemical dependency issues connected to unresolved stress at a combined cost in the tens of billions annually across the economy. And for organizations in caregiving or crisis-facing fields specifically, the exposure compounds: justice-involved youth, for instance, are roughly 12 times more likely to carry a significant ACE score than their peers … meaning the staff serving them are managing their own regulation while absorbing someone else's, often without training for either.
This is the part traditional workplace wellness programs miss. A meditation app doesn't touch a dysregulated nervous system that was calibrated that way before age 10. Addressing ACEs at an organizational level isn't about diagnosing individual employees … it's about building a culture and a skill set that helps everyone regulate, regardless of what they walked in carrying.
What That Looks Like in Practice
Trauma-informed, mind-body approaches aren't a soft add-on to this problem … they're the actual mechanism that intervenes on it. Nervous-system regulation training gives people a concrete way to recognize when they've shifted into a stress response and bring themselves back down, in real time, before it turns into a snapped reply, a missed deadline, or a slow walk toward burnout. For leaders, that means fewer conflicts that spiral, steadier decision-making under pressure, and a team that recovers between hard days instead of just accumulating them.
You can't see an ACE score on a resume. But you can build a workplace that doesn't require everyone to already have a perfectly regulated nervous system to succeed in it … and the research says that's not just the compassionate move. It's the operationally smart one.