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We Emit a Visible Light That Vanishes When We Die, Says Surprising New Study

  • A 2009 investigation led by scientists from Canadian institutions revealed that living organisms emit extremely faint visible light, which ceases immediately upon death.
  • The study followed from previous research into biophoton emissions, focusing on whole animals and plants to understand how light signals reflect biological activity and stress.
  • Using sensitive cameras, four live mice were recorded emitting faint photons for an hour before euthanasia, followed by another hour of imaging their dimmed emissions after death.
  • The authors observed that live mice emitted a significantly higher amount of light compared to the nearly extinguished photon emissions seen after death, emphasizing that the contrast in photon counts was unmistakable.
  • This fading glow suggests biophoton emissions could enable new non-invasive methods to monitor tissue health and biological stress in living organisms and plants.
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IFLScience broke the news in on Monday, May 12, 2025.
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