We all know that our scalp hair grays and thins as we age, but did you know that your body hair experiences serious changes, ...

Human biology is not black and white. Although newborns are typically categorized as male or female at birth based on visible ...

Most people have 24 ribs, with 12 on each side of the body. No evidence indicates any difference between males and females. The ribs and rib cage are excellent examples of the human body’s ...