The human body contains around 20 different elements, mostly made inside ancient stars.
How our bodies harness energy — Harvard Gazette
Human body, Organs, Systems, Structure, Diagram, & Facts
Proteins: building blocks of the body
Chemical Composition of the Human Body
Your Body Composition Shapes Your Health - Ask The Scientists
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Bend Dental Wellness - Wednesday Wisdom! Did you know that a big part of our body is made up of water? That's why staying hydrated is a daily priority in anyone's self-care
What is the human body made of? - BBC Science Focus Magazine
What is the human body made of? - BBC Science Focus Magazine
Are there any parts of the human body not made of cells? - Quora
The Human Body for children - Body Parts for Kids
Chemical Elements of the Human Body