HUMAN BODY CHEMICAL COMPOSITION | FORESIGHT.ORG
The human body consists of ~7 x 1027 atoms arranged in a highly aperiodic physical structure . Although 41 chemical elements are commonly found in the body's construction ( Table 3-1 ) , CHON comprises 99% of its atoms . Fully 87% of human body atoms are either hydrogen or oxygen .
SOURCE | SATYAVEDISM.COM