Media: licensed Pexels footage (where credited) and existing owner catalogue references (where credited). Pexels license: https://www.pexels.com/license/

Ketut Subiyanto — https://www.pexels.com/photo/crop-kid-weighing-on-scale-4474052/
Pixabay — https://www.pexels.com/photo/blue-tape-measuring-on-clear-glass-square-weighing-scale-53404/
Zlatin Georgiev — https://www.pexels.com/video/person-using-a-weighing-scale-6719385/
Polina Zimmerman — https://www.pexels.com/video/a-person-writing-on-notebook-3958479/

Synthetic English narration: Microsoft Ava Multilingual. Original instrumental score, edit and on-screen graphics. Stock people do not endorse products; no diagnosis or unverified location is attributed to them.