If biophotons were merely a waste product of metabolism, their study would be limited. However, evidence suggests they serve as a wireless communication network within and between living organisms. Real-Time Intracellular Signaling
van Wijk, R., & van Wijk, E.P.A. “Biophoton emission, stress and disease.” Journal of Scientific Exploration (2005). light in shaping life biophotons in biology and medicine pdf