Body mass index (BMI) is a number based on height and weight that can help estimate whether someone is at a healthy weight. For most adults, BMI is a useful guide, but it doesn’t tell the whole story.

BMI is an estimate of body composition based on weight and height. For people of any sex, a moderate BMI is usually 18.5 to 24.9. For people assigned female at birth, BMI does have some limitations.

The average weight for women in the United States is about 170 pounds, and the average height is 5 feet 3 inches. While these numbers provide a general snapshot of the national average, they don't ...

Babies develop at very different rates, both physically and when reaching developmental milestones like sitting, walking or ...

Children develop at different paces, but the average birth weight of a full-term male baby is 3.3 kilograms (kg) and 3.2 kg for a female. Growth charts can provide a guide to the average weight of a ...

Premenopausal women have a larger increase in mean BMI with increasing age than postmenopausal women, with BMI peaking at ...