With no explanation, label text_A→text_B with either "no" or "yes".
text_A: Method 1: We look at how obesity correlates with lifespan case by case according to diabetes. Method 2: We look directly at how obesity correlates with lifespan in general.
text_B: To understand how obesity affects lifespan, is it more correct to use the Method 1 than Method 2?
no.