Auxology

Auxology is a meta-term covering the study of all aspects of human physical growth.

Auxology is a multi-disciplinary science involving health sciences/medicine, and to a lesser extent: nutrition science, genetics, anthropology, anthropometry, ergonomics, history, economic history, economics, socio-economics, sociology, public health, and psychology, among others.

Source: https://en.wikipedia.org/wiki/Auxology