Is the Clustering of Diseases of Civilization Really What You're Describing?

Many of these diseases that we call you know product diseases they used to be called diseases of civilization, tend to be sort of clustered together obesity diabetes heart disease. So I was surprised to see that cancer also clusters together with these diseases and also appears to become more and more in the beginning in the late 19th century and then throughout much of the 20th century. But did you kind of mean clustering over time like you know how they've kind of come into society or do you mean clustering of people who are more likely to have one of these diseases is like are morelikely to have the other.