What is the most abundant element found in the human body?

In the human body, the most abundant element is oxygen. This is primarily due to the fact that a significant portion of the body's mass is made up of water, which consists of two hydrogen atoms and one oxygen atom (H2O). Since water accounts for about 60% of the body's weight, oxygen naturally emerges as the most prevalent element. Additionally, oxygen plays a crucial role in cellular respiration, a process that allows the body to generate energy from nutrients. It is also a component of various biomolecules, including proteins, carbohydrates, and nucleic acids, further contributing to its abundance within the body. Understanding the role of oxygen and its prevalence can help in grasping fundamental concepts related to human physiology and biochemistry.