Research

What the public data say about working adults who struggle with drinking or drugs, and what peer support can and cannot promise. Every number links to its source.

Papers

Each is a web page and a PDF. We use only public data and say how old it is.

Holding It TogetherFor everyone
About 27 million employed adults in the United States had a substance use disorder in 2025. Most never got help. What they say stopped them. PDF
The Cost of QuietFor employers
What untreated substance use costs California employers, with the arithmetic shown and the age of every figure stated. PDF
What Peer Support Can and Cannot PromiseFor funders and reviewers
An honest review of the evidence on peer recovery support: what it has shown, what it has not, and what we will and won't promise. PDF