C.pump blood more efficiently
Asphyxiation because it is a condition caused by lack of oxygen, which causes one to choke.
Bulimia is an eating disorder in which someone forces vomiting in order to lose weight.
Therefore, I believe the answer would be throwing up after meals, as well as his teeth being discolored and his cheeks being swollen as a result of his bulimia.
High income family or rich if you want to sound rude