Dr. John Clark stayed among the Hunza people for 20 months and in his 1956 book Hunza - Lost Kingdom of the Himalayas[36] writes: "I wish also to express my regrets to those travelers whose impressions have been contradicted by my experience. On my first trip through Hunza, I acquired almost all the misconceptions they did: The Healthy Hunzas, the Democratic Court, The Land Where There Are No Poor, and the rest—and only long-continued living in Hunza revealed the actual situations". Regarding the misconception about Hunza people's health, Clark also writes that most of his patients had malaria, dysentery, worms, trachoma, and other health conditions easily diagnosed and quickly treated.