The waist is the part of the human body located between the ribs and the hips. It is often considered the narrowest section of the torso and plays a crucial role in body movement and posture. The waist is also significant in fashion, as it is a common area for clothing design, including belts and waistbands. In terms of measurement, the waist is typically defined by its circumference, which can be important for health assessments. A healthy waist size can indicate a lower risk of certain health issues, such as obesity and diabetes. Maintaining a healthy waistline is often associated with a balanced diet and regular exercise.