For older adults, both very small and very large changes in waist size are linked to higher death rates, forming a U-shaped pattern.

Older adults who lose more than 5% of their waist size are more likely to die within the study period compared to those whose waist size stays stable.

An increase in waist circumference is quantitatively associated with increased all-cause mortality risk in adult humans.

People with bigger waists are more likely to die sooner, even if their overall weight seems normal—this means where you carry fat matters more than how much you weigh.

Gaining weight or increasing waist size didn't significantly affect the risk of death compared to stable weight or waist size in older adults.

In heart disease patients, larger waist sizes are linked to higher risk of dying from heart-related causes, with the biggest risk in those with the largest waist measurements.