“In the human body which element constitutes the highest percentage?”

"Oxygen comprises approximately 65% of the human body’s mass primarily in water and organic compounds. Essential for cellular respiration it supports metabolic processes vital for life. Other elements like carbon and hydrogen follow in proportion. Understanding the body’s elemental composition is fundamental in biology informing studies in physiology nutrition and medicine. Oxygen’s dominance highlights its critical role in sustaining human health and biochemical functions influencing research in medical science and health sciences."