There is a current "conversation" among medical professionals about the increase in the number of obese patients, and the stress their size is putting on these professionals. Hospitals and other health care facilities are often not equipped to handle larger size people, and nurses and others feel the physical stress on them is unfair. The idea is these fat people "should just lose weight". After all, isn't it true that fat people are ALL unhealthy and should just eat less and exercise more?
NO, this is NOT always true. There are healthy overweight people, and unhealthy thin people. Being overweight is a risk factor for some chronic illnesses like heart disease and diabetes. It is NOT a guarantee that the overweight person will develop these illnesses.