Celenium is not a widely recognized term in scientific literature. It might be a typo or a misunderstanding of "selenium," which is a chemical element (symbol Se) known for its role in various biological processes and its function as an antioxidant. Selenium is essential for human health in trace amounts and is found in foods like nuts, fish, and grains. If "celenium" refers to something else, please provide more context for accurate information.