This is my biggest issue with weight healthcare, the idea that if only the patient would eat correctly they wouldn’t be overweight. It’s not some moral failing a person often over eats, it very well could be some physiological issue that should be treated. It would be like telling someone with asthma that they just need to get into better shape to breathe better.
Altitude is another factor, due to dry and colder air and lower oxygen -- a double whammy for asthma.