The biological feedback loop connecting stress, cortisol, and comfort food.
What the evidence says
- The model as PROPOSED: chronic stress → elevated cortisol → increased drive for comfort food[1]
- …and comfort food → abdominal fat accumulation → signals that suppress stress hormones[1]
- Closing a self-reinforcing cycle: stress → eating → temporary relief → more stress → more eating[1]
- *This is the authors' proposal, not a demonstrated finding.* Their own sentence: "We propose that people eat comfort food in an attempt to reduce activity in the chronic stress-response network with its attendant anxiety" — and the paper is titled a NEW VIEW of comfort food[1]
- *The feedback half is rat work, and rats go the other way*: chronic stress typically DECREASES weight gain in rats[1]
- *In humans the response runs BOTH directions*: chronic stress induces either increased comfort-food intake with weight gain, OR decreased intake with weight loss. The human evidence for the loop itself is one correlation — depressed overeaters show lower stress-axis activity than depressed under-eaters[1]
- Not a character flaw — but a proposed biological model, offered to explain a pattern rather than a mechanism established in people[1]