Persuasion, applied to health.
Circea is named for Circe, the goddess of persuasion. It’s the practice through which Dr. Kate Wolin applies persuasion science to health outcomes.

In Homer, Circe is the enchantress who changes what people do, the goddess of persuasion. A fitting namesake for a practice built on a single idea: that improving health is less about telling people what’s good for them than about understanding what actually moves them, and proving it moved the outcome that mattered.
Circea is the practice through which I do that work. It’s deliberately small. When you engage Circea, you get me – not a bench of associates learning on your problem – backed by the science, the measurement, and the operator experience the work actually requires.
The approach
Most health behavior change fails in one of three ways: it tries to inform instead of persuade, it measures activity instead of outcomes, or it leans on a single clever nudge and calls it a strategy. The work is holding three things at once.
Persuasion
The behavioral science to know what moves people.
Proof
The epidemiological rigor to know whether the behavior actually shifted the outcome.
Product
The operator’s discipline to ship it where real people are.
Where Circea helps
Product & experience strategy
Applying behavioral medicine to adherence, retention, and the outcomes your product is meant to deliver.
Content strategy for behavior change
Designing and executing personalized content that actually moves the behavior, not just engagement.
Evaluation & measurement
Protocols and data science that demonstrate whether your product changed the outcome, matched to your needs and budget.
Scientific advisory boards
Sourcing the right scientists, managing conflicts, and running the board so it delivers real value.
Who Circea works with
Digital health teams whose users engage but don’t improve. Clinical programs that can’t move enrollment or adherence. Pharma innovation groups that need the science right and shippable. Boards and leaders who want a straight read on whether a behavioral strategy will deliver, before they bet on it.
Behind Circea
Circea is the firm; Dr. Kate Wolin is the person behind it — behavioral epidemiologist by training, healthcare entrepreneur by blood, adjunct professor at Northwestern’s Kellogg School of Management.
Work with Circea
If behavior has to change for your outcome to move, let’s talk.
Start a conversation →