Life’s faint glow: a potential new signal for health and disease
All living beings emit ultraweak biophotons detectable with sensitive cameras, a signal linked to metabolism and oxidative stress. Researchers hope these faint photons could reveal health status, distinguish cancerous from healthy cells, monitor disease progression, and possibly enable noninvasive diagnostics or light-based therapies, though evidence for photon-based cellular communication remains controversial and the field is still maturing.
