How Does the Human Body Create Its Own Light?

Did you know that the human body emits a small amount of light? This phenomenon, known as bioluminescence, is not just limited to fireflies and deep-sea creatures but occurs in humans as well. Research has shown that our bodies emit a very faint glow due to biochemical reactions involving free radicals and the process of cellular respiration. The light is strongest in the late afternoon and diminishes at night, correlating with our metabolic processes. While this light is too weak for the human eye to detect, advanced imaging techniques have captured this subtle glow, providing intriguing insights into human biology and metabolism. This remarkable discovery prompts us to rethink our understanding of ourselves and the biological processes that sustain life, revealing a hidden layer of complexity in human physiology.