What causality are you implying here? My extended family is all blue collar for the most part and almost all live in the same few small towns. I'm saying, in m

What causality are you implying here? My extended family is all blue collar for the most part and almost all live in the same few small towns. I'm saying, in my blue collar family, the cousins who stayed fit, thin, avoiding alcoholism and smoking look a decade or more younger than those that didn't.