The article is about how morbidity and mortality relate to cardiovascular fitness. The fact that waist to hip ratio also is related to morbidity and mortality i

The article is about how morbidity and mortality relate to cardiovascular fitness. The fact that waist to hip ratio also is related to morbidity and mortality is a bit irrelevant in that specific context. One can imagine a person who vigorously rows every morning for 45 minutes and has a high cardiovascular fitness, but who also has a very poor diet and is thus fat.