Runners often discuss the latest shoe trends and styles, whether it’s carbon plates or the latest foam technology. Far fewer long-run chats and online forums are dedicated to discussing the fit of ...

This database presents a compilation of indicators on household size and membership composition around the world, estimated using both tabulated data and household roster micro-data from censuses and ...

The average waist size for U.S. women is 38.5 inches, indicating widespread abdominal obesity. Larger waist sizes are linked with increased risks of chronic diseases, like heart disease and diabetes.

Babies are born with smaller eyes, about 16.5 millimeters long, and eyesight develops over the first 2 years as focus and coordination improve. Eyeballs grow rapidly after birth and again during ...