by Rhona Mahony. In The Jungle Effect, Daphne Miller has described her travels to places in the world where very few people get sick with heart disease (Crete), Type 2 diabetes (Copper Canyon, Mexico), depression (Iceland), colon cancer (Cameroon), and cancers of the bowel, breast, and prostate (Okinawa). ![[photo of Icelandic sheep by Guilhem Bertholet, cc]](http://wildbee.org/wp-content/uploads/2008/11/iceland.sheep.jpg)
She is a family-practice physician in San Francisco. Her immigrant patients pointed out to her the contrast between their traditional diet and superior health when visiting relatives back home and their regimen of donuts and weight gain after coming back to the U.S. Dr. Miller decided to follow the clues herself.
In the disease “cold spots” that she visited, she found people eating the foods that their great-grandparents had eaten, prepared in the old ways. The animals they eat also live as they did 200 years ago, either wild or domesticated but unconfined.