The Mice Had Unlimited Food, No Predators, and No Disease. They All Died Anyway.

The Habit Healers · Aug 6, 2026 · 20m

Loneliness is now treated as a public health crisis, but the research points to something more specific than being alone. It may be the loss of purpose that does the real damage to your health.

In this episode of The Habit Healers Podcast, I walk you through one of the strangest experiments in behavioral science. In 1968, a researcher built a perfect world for mice: unlimited food, unlimited water, no predators, no disease. The colony still collapsed and went extinct, and it never ran out of anything. What it ran out of was meaningful roles.

Then we go from metaphor to mechanism. I explain…