Note, I’m not a doctor! Both peoples seemed healthy. They were certainly active, even the elders. Both seemed happy, overall. There seemed to be more discontent amongst the younger Kazakh goat herders, but they also have more interaction with the outside world than those in Siberia. So perhaps it is just seeing that other options are out there. The Siberian nomads have lots of rules on cleanliness and washing and what touches what which has probably helped with managing germs or diseases. The Tavan Bogd nomads to a lesser extent. The only thing I was truly surprised about health wise was the state of their teeth. Not a lot of dental hygiene in either group and even young teens had rotten teeth (not a lot, but some). For not having sugar, this surprised me.