Yes—waist measurements revealed heart risks missed by body size categories in a study of 259,388 people. Researchers combined data from 15 groups, with a typical follow-up of 20 years. They compared BMI (Body Mass Index) categories with two measures of belly size. One was waist size. The other was waist-to-hip ratio: waist size divided by hip size. They tracked nine outcomes, including heart attacks, strokes, heart failure, and deaths. Among people in the normal-weight category, 5% had a high waist size. Yet 18% had a high waist-to-hip ratio. In the overweight category, those figures were 39% and 40%. These differences mattered. In both categories, high waist measures were linked to 15% to 50% higher risk for most outcomes. That means a normal body size category did not always signal lower risk. The pattern was more complex among people in the obesity category. Of these, 9% had a low waist size, and 45% had a low waist-to-hip ratio. Women with obesity and a low ratio still had higher risks than normal-weight women with a low ratio. A lower ratio did not erase that difference. For BioSocial members, the takeaway is that one number can miss useful context. Recording waist measurements alongside your body size category could help you compare notes with peers. The study linked measurements to later health problems; it did not test whether shrinking your waist lowers risk. It also cannot turn one measurement into a personal risk forecast. What have your waist measurements added to your understanding of your own body size numbers?