Composition of the human body not in an essential biological role. The average adult human body contains approximately atoms and contains at least detectable traces of 60 chemical elements. About 29 of these elements are thought to play an active positive role in life and health in humans. The relative amounts of each element vary by individual, mainly due to differences in the proportion of fat, muscle and bone in their body. Persons with more fat will have a higher proportion of carbon and a lower proportion of most other elements (the proportion of hydrogen will be about the same). The numbers in the table
European Society for the study of Human Evolution European Society for the study of Human Evolution The European Society for the study of Human Evolution (ESHE) is a non-profit organization whose intention is to promote the fields of research that are involved in the investigation into the biological and cultural evolution of humans. This broad field of research comprises, among other disciplines, human paleontology or paleoanthropology, paleogenetics, paleolithic archaeology, and paleogeography. The society was officially established in 2011 in Leipzig, Germany, as a non-profit organization under German law. The current president of the society is professor Dr. Jean-Jacques Hublin, Director of the Department of Human Evolution at the